Final decision Nzxt 630 phantom vs corsair 760t

You be fine running even 10 fans with the 650W and the i5 with the GTX 770. I wouldn't consider an SLI setup if you don't upgrade your power supply to something like a good seasonic or XFX 850w. The Phantom 630 can easily handle 3-way SLI and even extended ATX motherboards.

The Phantom 630 is one of the easiest cases I've ever worked with. Removable drive bays, SSD mounts behind the motherboard tray. 10-fan controller. Tons of space for cable management which will also help with the temps.

It comes with 3x200mm fans (front/side/top) and a 140mm rear fan. I would see how things go with the supplied fans and add as necessary. Just use the switch on the Phantom 630 to crank the fans to high if necessary since you have high ambient temps. If you need things a little cooler, just add fans as necessary.

Update: I started the response before your update. If you can somehow get a hold of a Phantom 630, do it.

There are a few things with the 810 that I like better, but it stops with those:
1) I like the windowed case on the 810 model. But you do sacrifice a side fan because of it.
You can buy the Phantom 630 with the windowed side panel (or even buy it after for $30), but then you sacrifice the use of the 200mm side fan on the default model. With your ambient temps, your going to want the version with the side fan.
2) You could argue the docking bay is a plus with the 810, but I'd never have use of it, myself.
3) The 810 is a little more traditional looking.
4) The card reader looks to be better integrated with the 810. One thing I do not like about the 630 is the SD card slot on the case doesn't quite line up with the reader at least on mine. YMMV for sure, but this is one thing that annoys me about the 630 case, but I have a USB multi-reader so I never have had any issue other than trying the 630's for the first time. I'm sure I could tweak it a tad and get it to line up, but I really don't have a need to.

Some differences between the 810 and 630:
The 810 is squared off on top whereas the 630 is angled. It takes up a little less space top to bottom and is a little thinner.

The 630 has the SSD mounts on the back of the motherboard tray. This is a great use of space! You can mount to SSDs to the back of the motherboard tray. It seems simple, but it's quite thoughtful when it comes to designing a case.

The biggest difference I see, though is the lack of 200mm fans (and subsequently, fan options) in the Switch 810. 200mm fans are not as loud as the smaller 140s or 120s, so there is a definite advantage to the Phantom there. You can move a lot of air with these 200s with less noise.

You also have a 3-speed fan switch with the 630. With the amount of air the 200s move, you may find you can turn the fan speed down even in your high-ambient temp climate.

Either case would be great, but personally, I went through the same thing when I replaced my Thermaltake Spedo case. I went down to a large local computer shop (microcenter) to see/touch all of the cases I was considering. After doing so, I chose the 630 because it has high-end quality and case features for a mid-range tower case price.

I can't think of a PSU that wouldn't fit in these cases. Your VS 650 will have no problem in either case.
I have a Seasonic Platinum 1000W in my 630.

These cases are massive inside.

I run two 780s, but have enough power if I would want to run 3. I also have enough power if I wanted to run something like 2x290Xs if I so choose to. I like having the flexibility plus my PSU has a 7-year warranty.

Temps with SLI are great. I just run a custom fan profile using Precision X software to force temps to stay lower at their lowest usage and highest usage. I never get above 70C (max spec is 80C) with either card and the top card is alway 5-10C hotter than the bottom card by nature. My 780s are both using stock coolers; nothing custom. It's the basic Nvidia designed card and it stays nice and cool.

I use an H80 on the CPU and that keeps my temps in the low 60s during stress/heat tests with Prime95 (50Cs while gaming in BF4 on Ultra with 4xAA) and high 20Cs while idle.

I never even reach that temp.

The 810 does have a rear fan. It comes with a front, rear, internal and top 140mm fan. It just doesn't have any mounts for 200mm fans.

If you get a standard video card rather than one that blows air into your case, you don't have to worry about the rear fans so much.

Again, they're both great cases. If you like the advantages of the 630 that I've mentioned and think they're worth the extra $10, I'd say get it. If not, the 810 is not a bad choice by any means, but you would be giving up the side fan that can bring cool air in and blow directly on the video cards.

In your case, I'd definitely get the standard 630 because of the side panel fan mounts. The windowed-edition 630 forgoes these but gives you the nice view. With your ambient temps, I'd definitely go with the case that facilitates more fans. You need to stick with something that offers as much flexibility as possible when it comes to cooling. The non-windowed version includes a 200mm fan on the side. This fan can really help you keep GPU temps under control.

The 810 doesn't have the side fan mount. In your case, my biggest concern would be the lack of ventilation and airflow from the side panel. This will limit your options when it comes to fan configurations and may cause the GPUs to run hotter.

The 630 dimensions:
245mm(W) x 627mm(H) x 600mm(D)

The 810 dimensions:
235mm(W) x 605mm(H) X 577mm(D)

A lot of the difference in size in height and depth have to do with the 630 not being exactly rectangular with its angles on the top and front. The additional width on the 630 would give you about 5mm of additional clearance for an air-cooler on the CPU if you remove the side fan and an additional 5cm behind the motherboard tray for cable management.

The 630 has front HDD bays which can be configured as 1,2,3,4,5 or 6, whereas the 810 can be configured as 3 or 6. In either case, this is good because being able to remove any drive bays helps with intake fan airflow. I have only two HDDs in my 630 (my two SSDs are mounted on the back of the motherboard tray) so I use only the 2-bay cage and there is hardly anything blocking the intake of the front 200mm. You can always mount additional drives in the 5.25 bays of each case if necessary.

The rear LED lights are good when you're trying to plug things into the rear panel without sufficient lighting. You can't change the color on the 630. It is white. The lights look to be blue on the 810. Either way, the only time they are useful is when connecting things to the real panel.

The gunmetal color is nice. It is closer to black than gray and next to a black case or a monitor with a black bezel you can tell the difference otherwise, if you case is not directly next to the other components, you don't really notice the difference. And since the grills in the design are black, it all ties in nicely. I actually like the gunmetal better than the black, but it's all a matter of personal preference.

More info on the 630:
http://www.nzxt.com/product/detail/118-phantom-630.html

More info on the 810:
http://www.nzxt.com/product/detail/111-switch-810-case.html