I was running W2K/W98 dualboot, I added Mandrake Linux yesterday... popped the CD in, followed the very easy instructions, and poof, now I'm triple-booting Linux, W2K & W98... very easy. As a Linux newbie myself, Mandrake was definitely easy to set up... easier than Windows 98, in fact, although not quite as easy as W2K.
Cheers,
Wade