It depends on what you need if for. If it's just for Poser and such, a TNT2 with 32MB would be the way to go (that's what I hope to upgrade to - my 8MB ATI card is starting to show its age, but I need to increase hard drive storage first!), and those come in at around $80-$120... For game-play, you'd probably want to go for a very low end GeForce or a Voodoo 3 or 4 - if you're careful, you can find the older GeForce cards (Older? It's only five months old - sheeshe!) for about $190-220, and Voodoo 3 and 4 run between $100-200, IIRC..