Yes, you can do this. You have to install XP onto a different partition than 98 is on. When you do this, you will get a screen at bootup that by default gives you 30 seconds to choose which OS to boot. If you don't want all the goofy eyecandy of XP, you might want to consider Win2k Pro. You can get it fairly cheap at a computer show, there are =far= more drivers for it than for XP, and it has the memory management capabilities of XP.