if ya looking for the fastest GFX card, the 295 isn't it; the fastest card is the 5970. Of course if PhysX is part of your game plan, then that card would also need a dedicated PhysX card and the driver hack.
Here's the > $300 "winners" from THG's latest (December) GFX Roundup Best Graphics Cards For The Money: December '09
$240 - 2 x GTS 250
$310 - No winner (HD 5850 Honorable Mention)
$330 - 2 x GTX 260 / 2 x HD 5770
$400 - 2 x HD 4890
$410 - No winner (HD 5870 Honorable Mention)
$465 - No winner (GTX 295 Honorable Mention)
$625 - No winner (HD 5970 Honorable Mention)
here's THG's take on the 3 cards
"Despite ATI's new Radeon HD 5970 taking its place as the fastest graphics card on the planet, Nvidia's GeForce GTX 295 (with SLI-on-a-board) remains an extremely powerful graphics card. Essentially two conjoined GeForce GTX 275s, the GeForce GTX 295 offers very notable gains over a single Radeon HD 5870 in the great majority of game titles, although the Radeon will use far less power doing so. The GeForce GTX 295 does have an advantage in that it it still quite easy to find and purchase. Moreover, ATI's release has forced prices on these cards down by a significant chunk."
Take price info w/ grain of salt however as demand has forced prices up again.