Hmm...I checked out vmware and xen, and decided to give xen a shot, since it's open source, and vmware isn't (?). I got xen runnning from the demo cd, but unfortunately Red Hat isn't one of the options that comes on the demo cd. Then I started working on getting a full install of xen working, but after putting a few hours into it, it looks like that's just beyond my expertise. Cool idea, but in my case, with my skills, it just doesn't seem to be practical.