amd k6-2s dont overclock very well. you could possibly overclock the 350 to 400 mhz but you wouldnt notice any performance increases. i suggest you just stick it out and leave it at 350. although i do have a 450 mhz k6-2 (my win2k server) that ive ran for the last year at 492 or something mhz, but ive noticed larger performance increases there because i increased the bus speed to around 112mhz and it overclocked all of my peripherals as well because my ram speed/pci bus/etc all benefitted from the higher bus speed. toms hardware is a good source, but seriously i think its not worth the trouble to overclock a 350 when youre upgrading it soon anyways. k6-2s are already pretty much overclocked when you buy them, heh... if youre buying a new cpu, you can get a duron for a very low price these days and itll vastly outperform a k6-2 or even a celeron. the fpu on a k6-2 is very weak, and poser is quite fpu-intensive. i have it installed on the k6-2 i mentioned above and it runs agonisingly slow. it renders fast enough, but when youre zooming and rotating the figures it bogs down quite a bit, even with 384mb ram. youd be better off to spend a little extra and get a duron 800 chip and a new motherboard like the asus a7v -- it will also give you the option of upgrading to an athlon thunderbird in the future if you get some more cash. durons are the most power for your buck right now.