%root....

well nothing is hard . almost everything  could be done.

there are good guides online . shows you step by step how to accomplish such taskes .

but as a start . make sure u have those done 1st ..

1 - BACKUP .. BACKUP and BACKUP . and make darn sure you can restore the data.

2 - install vista or XP first .

3 - pick a lunix OS that uses GRUB as a boot loader, so u could edit it to have multi boot options. i would recommend Fedora 8 or UBUNTU .

good luck .. and let me know how this gose . :)