Comments on this 1100T Build (Pre-built)

You're getting ripped off. To start, the X6 CPUs are basically worthless. You'd spend the same on a X6/AM3 build as you would an i5-2500K/P67 build, but the i5 would give you a good 20-30% performance increase. Second, $1550 for an X6/6970 build is a lot more than you could build it for. If I had $1,500+ to spend on a build, I'd build this (I'll check prices in a minute or two):

CPU/HSF: i7-2600K and Scythe Mugen 2 Rev. B $362 shipped. If you want to overclock, and you should with Sandy Bridge CPUs.
Mobo: ASRock P67 Extreme 4 $169 shipped
Ram/GPU: G.Skill Ripjaws X 4x2 GB 1600 mhz CAS Latency 9 and GTX 580 $540 after $25 rebate
HDD/OS: Samsung Spinpoint F3 1 TB and Windows 7 Home 64-bit OEM $160 (get a second if you need 2 TB immediately and put them in RAID 0)
PSU: SeaSonic 850W $131 shipped (needs a power cable, but they're like $5)
Case: Pick one that you like. I personally like to recommend the Rosewill Challenger, Antec 300 Illusion, Coolermaster 690 (combo with the optical for $10 off) and HAF 922, but there are other great options. I wouldn't spend more than $100-150 here. The ones I listed are all under $100, including shipping.
Optical: Cheapest SATA DVD burner you can find $22 (might want to wait for this. They're usually $5+ cheaper.)

Total: $1,384, plus the cost of a good case and a power cord. It's likely to be closer to $1,435-1,485 in total. This will absolutely destroy that X6/6970 build.

Yeah thats an even bigger ripoff than usual prebuilts. I think for that kind of money you could get:

Intel Core i5-2500k
Coolermaster Hyper 212+
ASRock P67 Extreme
2x4GB 1600Mhz G.Skill Ripjaws
2 x nVidia GTX 560Ti
1TB HDD
128GB SSD
HAF 922 or Antec 902 or something.

That comes to about $1450 not including over $100 of rebates and it is massively better than that Phenom II x6 build. (Prices from Newegg)