I decided to run Jim Burton's CPU test on my old machine, a Pentium III 850 GHZ, 512 megs of SDRAM, Windows 98 SE and a completely jam-packed Maxtor 40 gig harddrive in ATA 66 mode. 1 minute, 21 seconds or 81 seconds total. I was impressed! I am planning to reformat the drive and install Windows XP on this but not until I get everything moved over to my Athlon 1800. I will be interesting to see what the difference in render performance between Windows 98SE and XP is. What is the difference between XP's Home and Professional Editions....besides the price? Are there any benefits to performance?