Does post count really matter that much to this community?
I really don't feel I should have to provide other forum memberships as credentials to provide assistance to someone with a child's TV show character as their avatar, but if you insist, I would be glad to provide such
So, if you'd also like my personal take on the Radeon X800 that your considering I'd say avoid the card...it lacks Shader Model 3.0 support, doesn't have FP32, and is the bottom end of it's line, which is already a generation back...
While there is no card which can directly compete at those prices (due to rebates and incentives, this is however ATI's marketing response to the 6600GT...so the idea is to have nothing competitive with it) lets consider the 6600GT given that it's in the price range, on theoretical performance it shouldn't be able to compete, however the X800 is serverly underserved by it's memory bus (only 22.4GB/s of bandwidth in contrast to most R430 based chips having around 30GB/s of bandwidth (such as the X800XL))
The 6800GS will offer a higher theoretical performance point (near 6000M Pixels/S if you purchase an overclocked model, which is over 6800GT's performance point (and it's got faster RAM on the overclocked models) while the non-overclocked model still offers higher performance, it isn't quite 6800GT equivalent) One thing that may surprise is the 6800GS overclocked models from Leadtek and XFX don't cost more than $6-$7 more than the normal versions from eVGA and Gigabyte...
Please consider that the 6800GS also provides SM3.0 support and FP32, which Half-Life 2 will support, the 6800GS also has a higher performance in Doom 3 (without even seeing a benchmark I can tell you that, given that Doom 3 is one of nVidia's best games)
If you want user experiences in terms of how the hardware makes you "feel", well there are a few sites on the 'net that I'd be GLAD to point you in the direction of, that benchmark like that...because like they've stated in press releases "benchmarks provide meaningless numbers that don't really affect how a user will get along with the hardware"
Have a nice day, and a happy new years