Re: Faster then a 4600TI..
If you want something that'll last you a while, the GeForce 6600 GT AGP can be had for about $200-210. If you want an interim upgrade before moving on to PCI-Express in a couple months, a 9800 Pro will work as well. Those can be had for probably in the $150-180 range if you know where to look. I'd still take the 6600 GT, though.