I wouldn't. I just blew the hard drive on my work laptop, and found out that to reinstall XP Pro, it'll cost me $270, and you only get two opportunities to install the software before it self destructs. Evidentally, Microsoft doesn't allow IBM, Dell and the others to give XP disks with the machines like they did with older OS's.
Right now I'm installing a new hard drive and am debating getting an old 98 disk or 2000.
Or getting a Mac...