I have Athlon XP Mobile 2600 and want to upgrade

I'm running at 2.52ghz on an Athlon Mobile 2600+ right now with acceptable temps and I'm using two sticks (512 each) of Kreton PC-3500 with a Abit NFS-7 (NF-7S?) mobo and a Radeon 9800XT video card. I get 19,000 in 3dmark2001se and 6473 in 3dmark2003. I'm looking to upgrade some aspect of my system, but I'm not sure if I should go mobo/cpu or video card. I will only do one or the other because of budgetary reasons. I'd like to stay under $500. What would you guys suggest is the best course of action for me? Should I go for the cpu upgrade or the video card upgrade? This is a gaming machine only, by the way. I do nothing but game on it. Thanks for your time!

Personally, given those constraints, I'd upgrade the video card. It's the quickest way to achieve better gaming performance.

i agree. your gaming will only be as good as your video card. you probably wont even see a difference in gaming with a new mobo/cpu. so, now you can shop for the best video card, and game away

Always upgrade your videocard 1st, then upgrade your CPU, then upgrade your RAM if necessary.

one thing to consider: if you buy an agp card now, you may have difficulty finding a faster motherboard/processor to upgrade to that still has agp in the future.

Look into saving some money and go Venice /w PCI-E.
Thats my suggestion
have fun.