Very, very big wish for the LucasArts adventure games like Day Of The Tentacle, Sam'n'Max : Hit The Road and Full Throttle... I do have the originals but can't run 'em on XP and I would gladly pay a few dollars to get a working version.
The Bullfrog games were good too (Theme Park/Hospital, Dungeon Keeper...)
Speaking of LucasArts, actually, X-Wing (and its followers) was/were totally awesome...
you can play the old LucasArts adventures in winxp (and other OS's) with summvm
i would also love to see the lucasarts adventures on here. the monkey island series definitely