need some eyes before purchase-new build

[MikeB12]

I'm biting the bullet and building my quad early, was gonna wait for q9450... but said screw it...
so i'd like to tap some brains here, spot any holes before I click buy.

any suggestions welcome...
the if's in my mind are:
1.
ram-thought about going 2x2gb, but the xtreem 2x1gb looks to be a better performer, plus doubt I need 4. but anyone with abit ip35pro thats had good ram results I'd luv to know... yeah and I saw the huge ip35pro +100 page thread... great resource.

2.
2900 pro-i'm just an occasional gamer, so I still want a decent video, but is it worth the extra $70 for gddr4..
Thanks in advance for looking...