I thought I would update this and say that I just tried Resident Evil 5 online.
I'm not sure how Games For Windows Live works, but ingame everything seemed fairly fluid such as movements albeit a brief delay with some actions. I'm not sure if this is indicative of real world performance but on my end there didn't seem to be much lag or delays at all.
If there is anyone else here that has tried Resident Evil 5 online on a Hughesnet connection please let me know how it performs for you. Perhaps this might be another game that is somewhat playable on satellite without much lag.--