Best performance upgrade?

I'm sure the linden's can answer this question (basically, what do you guys run SL on in the office?)

What's the best performance upgrade I can go to for SL.

I've got a fairly modern system for gaming, heres the configuration:
Athlon XP 2000+
Geforce FX 5900
512 Mb dual channel ddr, running at 333 mhz
nforce 2 ultra 400 (chaintech 7NIL2)
err...other stuff.....probably not relevant.


So-----if I want to spend no more than $200 (and preferably less than that) what should I get to make SL perform better.....

Faster processor? More ram? Which one has a greater impact?

Would going to 1.5 gigs of ram help the most? Or getting a XP 3000+? I'm not willing to go above a 3000+, because those run about ~$170-180, and thats my limit.

I think I can get 3 512Mb dimms for that, but if I install 3 dimms in my system, I loose the dual channel ddr (nforce design quirk).

More ram>?Faster ram

Anyways, just looking for some ideas, if no one has any thoughts on the matter, I'll scavenge some ram out of my servers, purchase a processor, and run some benchmarks

Is there any good way to benchmark SL....hmm...Hadn't though of that....

Bit

Get more RAM. Going up to 1GB (more than that won't really help you) is good - just make sure you keep it dual-channel.

After that, if you want to spend the money, get a faster CPU. With more RAM and that fast video card, you'll be completely CPU-bound.

We've never found a good way to benchmark SL without having a private sim, and even then it's dicey, so we don't have any official benchmark numbers.