Dual 1Ghz PIII's, 1GB RAM, About 20GB free on a single 60GB drive. Matrox 450 dual head. Win2k pro. Swap file set to 1.5GB min, 4GB max. Have never allowed Outlook/OE to run. Never use any form of IM, or file sharing (Kazaa type) programs. Never use IE. Don't play CDs, MP3s, video games, etc... Reboot before doing any major 3D work. I typically do 200-300 frame anims, and while it takes a long time it has not crashed since SP3 while doing it. I will often reboot after doing a long one, before doing another long one though, just to clean things out. Oh, I also regularly flush the temp folder. Scan for viruses & spyware weekly, and defrag monthly.