[AccessD] OT: Virtual OS software...

Any of you have any preferences between Virtual PC and VMWare Workstation?

I am looking at getting one of these to:
1) Have a pristine copy of XP (legal), 2000, and 98 to test installs, etc.
2) To check beta or new software.
3) Run various flavors of Linux.
4) And in general, be able to play around with stuff without worrying about
hosing my main system.
5) So I don't have to multi-boot any more.

So, if you have any thoughts on these, I'd love to hear them.

Thanks,
Bobby