Payback. A port of GTA Vice City would be cool, but I can't see that coming just yet. There's also Sin, Shogo etc from Hyperion.
Other games I would like to see ported:
Warlords Battlecry (don't care which number in the series, both 1 and 2 are _dead_ ringers for each other as far as I am concerned. I guess the codebase is really similar, just more monsters in the sequel)