GPU:
MSI HD 6970 Lightning - I just prefer a strong single GPU solution versus SLI or Crossfire setups.
RAM:
Corsair Vengeance Blue 8GB (2x4GB) 1600mhz - Same speed, quality and size, but cheaper right now, and will match the color scheme of the motherboard.
PSU:
Corsair AX750 - Actually the same unit under the Corsair branding, but cheaper overall with rebate.
CASE:
Corsair Graphite White 600T or
Silverstone Raven 2 - I love the construction, design, and features on both of these, but I slightly favor 600T because of its integrated fan controller, easy access panels, and front side USB 3.0 port. I also love the new white on black color scheme that Corsair put on it.
CPUHS:
Antec Kuhler H20 920 - It's the same Asetek made unit as the H70, but with superior fans and more flexible tubing. It also has some very nice control features via its software package and plugging it into one of the spare USB headers on the MB. The lighted antec logo with variable color doesn't hurt either.