For GPU it looks like its coming down to (still accepting other suggestions, but please post a link, not just a name

)
SAPPHIRE 100186L Radeon X1950XT 256MB 256-bit GDDR3 VIVO PCI Express x16 HDCP Video Card - Retail
http://www.newegg.com/Product/Product.asp?Item=N82E16814102067
($250)
eVGA 512-P2-N637-AR GeForce 7950GT 512MB 256-bit GDDR3 PCI Express x16 KO Superclocked Video Card - Retail
http://www.newegg.com/Product/Product.asp?Item=N82E16814130066 ($270)
Could not find an absolute match with Tom's Hardware GPU comparing chart for the Radeon, so I do not have a clear answer as of now =/
I see there are other eVGA cards with relatively similar stats, but they are all out of stock and I do not want to have to wait for one, so I chose the Superclocked. This seems to be my main concern now, I think I have most other components figured out =)
Also, with the second more expensive build I posted, will those components be able to support an 8800 card? Mobo, PSU, etc?
(leaning towards more expensive build - cheaper in the long run)
Thanks for all the info so far