I am curious about processor upgrades too. I have a Celeron 466 Mhz processor with the Intel 810 for graphics. I am looking forward to the autum release of MS FS2002 which is supposed to be a lot smoother than FS2000 and was wondering what improvement could I hope for if I upgraded to say, a Celeron 766 Mhz or 800 Mhz? Thank you, TTT.