AFAIK the StealthXStream is the same psu as the 600w GamerXStream, the only differences being the StealthXStream has less moltex and sata connectors and a different name.
Being set for DX10 games is important since as few things as possible should have to be changed (processor only, most likely) in the future, and the game I am beta testing will eventually be DX10.
More cost up-front. If you're not oc'ing DDR2-800 is more then enough, and even if you are, with 800mhz ram you can get up to 2.8ghz on an E6300 without having to oc the ram. It doesnt really matter in the end. Both sets use Micron D9GMH IC's, they're pretty much the same ram. You could get the same speed as the Crucial ram with the G. Skill sticks by spending 3 minutes in the BIOS adusting some settings.
