So, I took the plunge and got the XFX GeForce 6600gt AGP for about 225 incl. tax. There's a 25 buck rebate, but I almost always fail to get rebates, so we'll see. You can check out a comparative review of a few 6600gt cards from techreport.com for more info about my card. I'll undoubtably be putting rants or raves about it once I get the thing up and running.

If you're interested, I bought the card from ZipZoomFly.com and they've been alright so far. They had the best price and offered free 2-day fedex.