Regarding playability of games under XP, don't bother. I've had it installed for a few months now and about 25% of my games are no longer playable.
Most of these are Windows 3.1 and DOS era games, but I received a demo disk from one of the PC gaming mags that had only 1 (out of 6 or 7!) demo that worked under XP.
Granted, those games that do work are usually flawless and smooth. But caveat emptor.
Regarding playability of games under XP, don't bother. I've had it installed for a few months now and about 25% of my games are no longer playable. Most of these are Windows 3.1 and DOS era games, but I received a demo disk from one of the PC gaming mags that had only 1 (out of 6 or 7!) demo that worked under XP. Granted, those games that do work are usually flawless and smooth. But caveat emptor.