JsadE3 :
Thanks for the lists. I was looking at the motherboard and the ram. I can't really see the difference between what I had and what you are showing me for the Z170. Does that type of ram work better with that motherboard and is the motherboard better with my other parts? Sorry I still don't completely understand everything I just know how to build computers but don't know everything about certain parts so I can't really tell which would be best.
If you plan to overclock (and you definitely should on that budget) you will need some extra wattage in your PSU. Also if you plan to SLI that GPU, and you also definitely should, you will need extra wattage. Honestly, PSU is something where having the bare minimum is fine, but you should always get more than the bare minimum just to be on the safe side. And quality power supplies are always emphasized over junk units. The Corsair AXi and EVGA G2/P2/T2 are widely regarded as some of the best out there. Sure, GPUs and CPUs are more energy efficient than ever before, but that doesn't take into account things like advanced cooling units and higher end GPUs.
I do plan on using another 1080 eventually but it seems that even with the second 1080 it says that I only need around 600 or 700 watts. I might downgrade the psu but it may not really make a difference in price.
But you should never buy a rig with the intention of immediately replacing parts. That almost never works, and you won't be satisfied with anything you have and you will wind up spending 2 - 3 times what you originally spent. I know, I have been there and done that. Better to buy exactly what you need once and be done with it, rather than buy and replace later.
I looked more into the ram and it seems like the ram works very well with the motherboard you picked but I could be wrong sorry just guessing. I still want to look into the case more it seems really cool but I'm not sure how good the stock fans are.
I wouldn't pick RAM that isn't compatible. And honestly the thing about stock fans is that those are most often the least important part in choosing a case. Those almost always get replaced especially when people build around a particular theme or color scheme.
One of the reasons I picked the N450 case was because it had good fans and a fan control on the side but the bad thing about the fan control was that if you replaced the stock fans with other fans then the other fans would always run at max speed or that's what I've been told.
The Noctis / H440 is a good choice for that reason. But the fan controller that's included is nearly identical to the one that NZXT sells by itself which is the Grid V2, and you can actually control the fan speeds through NZXT's CAM software by hooking it to USB 3.0:
https://www.nzxt.com/products/grid-plus-v2
What you were told about fan speeds is incorrect though. Fans will always run at max speeds unless you have a fan controller installed.
I'm definitely going to get an SSD but I really do not feel safe with water cooling.
That's fine. For SSD Samsung is generally the undisputed king of SSDs at the moment. On your budget I would get a 950 Pro, it's one of the best out there. If you don't want liquid cooling that's fine. Air is always safer, and there's plenty of solid dual tower air coolers out there. I would suggest looking at Phanteks, Cryorig, Noctua, and beQuiet! as they all make some great coolers that you should check out.