Why are you running all your VM's at once anyway? Don't forget 32 bit windows can only use 3GB of Ram anyway. I run parallels 4.0 on a Mac and it is a vast improvement over earlier VM platforms i used. They have a windows version.
Mac Virtual Machines and Virtual PC. Automation and Virtualization Software for Desktops, Servers, Hosting, SaaS - Parallels
Cheers,
Remy

