Okay, here's what I'm looking to do. I have a beast of a PC in the office that spits out great >1080p60 gaming. I have a Mac Mini that I bought on a whim and am not using. I want to put the Mac Mini in the living room, and use it pretty much as a console to play my Steam library, but I don't want to render on the Mini. I want to render on the PC, and feed that video output to the Mac Mini to feed my theater. I know that I'll be looking at some sort of remote desktop or VNC solution, but my primary concerns are lag, video quality, and cross-platform support.
Does anybody have any ideas and want to point me in the right direction? It just seems silly to me to build yet another PC just to put in the living room. Though I may just end up using the Mini as my daily computer to supplement my iPad 2, and just put the PC in the living room in a new case.