The HD 7770 is only $159 and its PCIe 3.0, if your board supports 3.0 you might want to consider two of these in crossfireX. Just saying, good bang for your buck.
Thermaltake Level 10 GT Case
Thermaltake 1050 Grand PSU
Thermaltake Bigwater 760 Plus
Asus Rampage IV Extreme Mobo
Intel LGA 2011 i7 3820 3.6Ghz CPU
(4) Corsair 4Gb 1600Mhz Memory Modules [16Gb Quad Channel]
Aerocool Touch 2000 Fan Controller
Samsung 128GB SSD 6GB/Sec SATA Drive
Radeon HD 7770 GPU (Eyefinity 3 wide on 22" LED AOC Monitors)
LG 24x DVD/RW Drive
Logitech G15 Gaming Keyboard
Saitek X52 Pro Combat Joystick
Windows 7 Pro 64-Bit