The NEW 8800GTS 512mb

[Mehen]

Here's a review from everybody's fav site

http://enthusiast.hardocp.com/article.html?art=MTQzMSwxLCxoZW50aHVzaWFzdA==

Basically between the GT and GTX in price and performance. MSRP $350, expect em to go as high as 400+ for the overclocked versions.

[TransformX]

http://www.firingsquad.com/hardware/xfx_geforce_8800_gt_256mb_xxx_review/

[Mehen]

That 8800GT 256mb looks solid too, although for just a little bit more I think it'd be worth going up the the 512mb card.
You can still find the 512 for $250 here and there.

Some prices I've found:
8800GT 256 $210, $230 OC
8800GT 512 $250, ~$300 OC
NEW 8800GTS 512 $360, $390 OC
All USD.

IMO the 8800GT 512 is still the way to go.