Originally posted by StormBringer
No reason to reinstall after you upgrade to XP unless doing a clean install of XP rather than an upgrade install.
I would recommend doing a clean install if this is feasible. Clean installs tend to be more stable than upgrades, especially if your current install is having any problems with stability.
I'd also recommend that if you decide to do a clean install, do a search on the forums for things relating to partitions, pagefile, and XP install issues. This might save you from any headaches and can help you to organize and optimize your setup from the beginning.