New system build

[mikeweezy]

Need a little help with building a new system. Here is what i have so far and which way i was thinking. Any help would be great since this is my first build in about 8 years. I am going with an i7-930 processor since micro center has it for cheap right now. Have an ASUS 21.5" 1920x1080 5ms monitor already plus will be connecting to a 72" rear projection 1080p DLP TV. Here is what i am thinking based on my research so far.

Antec Three Hundred ATX Mid Tower Case
i7-930
ASUS P6T x58 motherboard
x2 G.SKILL PI Series 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL7T-6GBPI
Now here is where i am hung up. I want to crossfire but i cant decide between 2 XFX ATi HD 4890's or 2 5770's. Need some input on which would work better for my setup.
HP 24X Multiformat DVD Burner Black SATA Model 1270i LightScribe Support
LITE-ON Black 4X Blu-ray Disc Reader SATA Model iHOS104-08
WD Caviar Black WD6401AALS 640GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive
WD Caviar Blue WD1600AAJS 160GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive
hec XPOWER780 780W ATX12V v2.3 / EPS12V v2.91 SLI NVIDIA HYBRID-SLI Certified CrossFire Certified Active PFC Power Supply

That is what i am thinking. Any tips would be great.

Thanks

 

[Mark Heath]

The 5770 is probably better for a new build, but a 5850 performs almost as well with the same price tag, but allows you crossfire in future.

I'm not great with x58 mobos, so I'll leave that to someone else.
A Corsair TX-750 or HX-750 are both pretty good. The TX is non-modular, 80-plus, 5 year warranty from Corsair, HX is modular, 80-plus gold, 7 year warranty. But I haven't heard much of XPOWER so feel free to comment.

One question though - why 2 hds (with the smaller one being slightly slower)?

 

[mikeweezy]

i want to run 2 hd's one for OS and one for everything else. Is the SATA 6.0 that much better? I keep reading corsair is the way to go. I was trying to save a couple bucks but as i keep reading thats the one place not to sacrifice. I was thinking the 5770 over the 5850 b/c of the mail in rebate at the moment on the 5770.

 

[davcon]

I would buy the 5850 but nothing wrong with 5770 for now if you have budget constraints.
XFX is the way to go either way.
The CoolerMaster 690 ii basic is a nicer case then the 300 usual had for the same price.
I have an HX750 you could probably get away with the HX 650 if your just going to crossfire two 5770.
Otherwise the 750 if you plan on crossfiring two 5850's
Honestly though i would just run a 5870 for the money your're talking

As far as the mobo goes anything Asus or Gigabyte that fits your budget.

I don't really have too much of an opinion on hdd set-ups whatever works.