I'll probably come up with some more titles later, but Lemmings (and Oh No!) come to mind as great titles that would be nice HD additions, since they are basically pick up games.  

I'm trying to think of some other titles where I was murdering the floppy.

Also, Gauntlet 2 would be another great HD titles.  I think I murdered a couple copies of this in the late 80s early 90s.  Always a great 2-4 player pick up game.

Chopper X, mainly cause I never beat, guess I need to hunt down a trainer for my lame self.