Speaking of which that Powercolor 7770
is $70 until the end of the day today (8/1) using promo code EMCXNVP42 and the MIR. If you're wary about Powercolor, the MSI 7770 in the OP is at the same price using promo code EMCXMXV54 good until 8/8/13.
Main: i5-3570K, ASRock Z77 Pro4-M, Asus GTX660 TOP, 120 GB Vertex 3 Max IOPS, 2 TB Samsung EcoGreen F4, 8GB 1600MHz G.Skill @1.25V, Silverstone PS07B
HTPC: A8-5600K, MSI FM2-A75IA-E53, 4TB Samsung SSHD, 8GB 1866MHz G.Skill, Hand-Built Wood Case