[glc]

1. Replace the Dominator with Vengeance 1600.

Newegg.com - CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Low Profile Desktop Memory Model CML8GX3M2A1600C9

2. Instead of that small SSD, why not go whole hog and put a big Intel 510 SSD in for the OS and apps?

Newegg.com - Intel 510 Series (Elm Crest) SSDSC2MH120A2K5 2.5" 120GB SATA III MLC Internal Solid State Drive (SSD) -OR-
Newegg.com - Intel 510 Series (Elm Crest) SSDSC2MH250A2K5 2.5" 250GB SATA III MLC Internal Solid State Drive (SSD)

3. Do it right and get this PSU:

Newegg.com - CORSAIR Professional Series Gold AX1200 (CMPSU-1200AX) 1200W ATX12V v2.31 / EPS12V v2.92 SLI Certified 80 PLUS GOLD Certified Modular Active PFC Power Supply