Hi :D
I have used versions of the Linux kernal (Ubuntu, Puppy Linux, and recently Mandriva one) on duel boot from second HDD i also ran Vista RC 1 Beta and i must admit i was more impressed with Mandriva then i was with Vista, if your interested in Lunix variations you can try a “Live Distro”- (this runs from your optical drive “CD/DVD Drive”) downloads as an ISO image and is burnt to disk (you will need to boot from your CD/DVD Drive, if you are not sure how to do this Please do ask someone who is familiar with BIOS and Boot Configuration
If you don’t have a CD/DVD Burner try this “its free”- CD Burner XP
Linux links
http://www.linux.org/
http://www.ubuntu.com/
http://www.mandriva.com/community/mandrivaone
http://distrowatch.com/
http://www.puppylinux.org/user/viewpage.php?page_id=1
Fizz :D