What is the compatability of these parts and your opinion(s): Case: Ultra M998, PSU: Ultra X3 600w, CPU: Core 2 Duo E6750 @ 2.66GHz, MOBO: Asus P5W DH Deluxe Wifi-ap, RAM: G.Skill 4GB (2x 2GB), GFX: Asus EN8600GTS (may change), Sound: Creative SoundBlaster X-Fi Platinum -