Well after Resident Evil 5, pretty much just Lost Planet 2 and Dead Rising 2 at the moment.
Lost Planet 2, I am especially looking forward to due to the 4 player Co-Op, and makes me wonder how awesome the first game could have been with that as well. Course I enjoyed that one as well.
With Dead Rising 2, with how zombies that they are planning to put on-screen at one time, I could imagine the PC version doing a lot more. I mean with Devil May Cry 4 PC, you had options and features to do more than what the console versions could do.