http://cdn.novell.com/cached/video/bs_07/mac_pc_linux.mpg
http://cdn.novell.com/cached/video/bs_07/mac_pc_linux_2.mpg
http://cdn.novell.com/cached/video/bs_07/mac_pc_linux_3.mpg
Ubuntu. Linux for human beings.
If you are interested in trying Ubuntu or Linux in general, PM me and I will answer your questions and help you install it if you wish.