Got a OC'd Celeron 633@790 with 192RAM running Windows 98. On my previous machine, I did all the tweaks I found over on the Prorec sight, vcache, virtual memory, etc. That article is about 3 years old now and I'm not sure if the recommendations are still valid. What tweaks have brought you increased performance? And in case you're wondering, 790 is the most I could OC to with my soundcard.