Potentially Simple Video Card Question

[D-Rider]

Righto, so I'm in the beginning stages of looking for a video card that'll actually fucking run my copy of Oblivion.  Here's the deal, though:  I know absolutely nothing about ATI cards, and those seem to be the prevalent ones around here.

So, here's the query for you technological geniuses:  what is the ATI equivalent of my humble GeForce FX 5200?  I'd hate to buy a card which turns out to perform the same...or worse, God forbid.

[Eusis]

Probably a low 9XXX ATI card. However, there's Oblivion benchmarks if you want to look at those to see how Oblivion'd run, and I believe they patched it so it /can/ run on weaker systems... But honestly, a new video card period would probably be preferable.

If you're curious for some quick benchmarks for Video cards, here's GameSpot's.