The 9800 and the 5900 both work perfectly fine. You pimping a 500 dollar card is pretty lame, especially when you can\'t even get ahold of one. The 9800 is already over a year old and can be snatched for MUCH cheaper then what you\'re going after -- and can be found in much more bulk quantities as well. Oh, and harping on that AA statement means nothing to me as the article clearly already states that using AA in this game is more of a hinderance to your own performance then an adjunct to increased image quality on any card no matter if it\'s the 6800 or the 800xt.
Finally, again, as the article suggests, higher resolution gaming is not the same for this particular game, again as the article states and I quoted above, resolution is not that big of a deal with Doom III as it is with games like Soldier of Fortune II, Far Cry, and Quake III. Just look at the screens. The point, and this is really what it gets down to, is that Doom III was programmed so well that as long as your hardware supports it, at any resolution, the game looks PHENOMENAL. Why you just fail to accept that fact is just odd to me.