Build has been completed.
Past
Processor - Intel i5 2500k $219
RAM - Corsair Vengeance 4GB DDR3 1600MHz $40
Motherboard - 2x Asus P8P67 REV3.0 (both caught fire, yes fire) (had a problem with RAM) $280 @ $140ea
GPU - Crossfire XFX HD6850's - 1x XFX Black Edition 1GB $170 - 1x XFX HD6850 $160
PSU - CoolerMaster GX 750W $79
HDD - Western Digital Caviar Black 1TB 7200RPM $89
Case - CoolerMaster Storm Scout - $80
Current:
Processor - Intel i5 2500k $219
Cooler - Corsair H80 $80
RAM - Corsair Vengeance 8GB DDR3 1600MHz $39
Motherboard - ASUS Sabertooth P67 B3 $200
GPU - Sapphire HD6970 2GB $240 (used!)
PSU - CoolerMaster GX 750W $79
HDD - Western Digital Caviar Black 1TB 7200RPM $89
Case - Corsair 600T White $160
Total: $1,106 in current state
Total lifetime: $1,836
----------------------------
Future upgrades
SSD - Corsair Force 3 GT SSD 128GB
PSU - Corsair AX7/850W