Well peeps I've been trying out PowerShadow for a couple of days now.
It's a Chinese virtualisation app and I have found it to be very good with no slowdowns and easy to use.
Installed version 2.82 on myP4-3 gig and P3-500 machines and it's working fine.
Great for testing other apps.One limitation is that any apps that require a reboot can't be tested as a reboot wipes everything.
Anyone interested may want to peruse the link below to get an idea about it.