I run 4 toons per computer well with 3 gig ram and 256Meg video card. I'v been considering going to more system ram with Win2K advanced server (8 gig) or a 64 bit os (but given that 8 gig is fine why go to 64 bit os?).

http://support.microsoft.com/kb/555223/en-us

Check out this deal for a 8 gig os:

http://www.royaldiscount.com/wi20se.html?ovchn=SHOP&ovcpn=shopping&ovcrn=Micros oft+Windows+2000+Advanced+Server+10+CALs+(CD+++Key )&ovtac=CMP

10 CAL for $89! Hope its ligit heh...



Anyway after reading around it seems that most who do more then 4 have 512meg or 700plusmeg video cards, and not using a lot of system ram.

Wonder if the real bottleneck is the video ram morso then the system ram, given that most of the information will be in the system ram and reads to the hard drive should be minimal, even with a 4 gig operating system.