Heating for me isn't an issue. There are no windows in my man cave but the wall has a cut out where I placed a small window AC unit. It vents into the ac heat into the laundry room that's got cement walls so it doesn't make that room hot. It keeps my cave a nice 74 degrees. W/O the ac it can get very hot in that small room.

I have a monster Dell XPS 720 that runs the center display. And I have 2 Dell XPS 400's that run the slaves, so 3 boxes total for WoW. I use Keyclone and InputDirector to controll it all with one KB/Mouse.

Its an unfinshed basement down there so the ceiling is just floor joices. The next project slated for later this summer after the DefCon confrence is to buy about 10 strings of LED christmass lights, Hot glue them into peg board and attach that to the celing for lighting. Right now its just a single bulb. You can see in the pic the lighting sucks. Im also thinking about running a dedicated 220 volt line for that room. All the hardware in there is getting close to the limit of the one 15amp breaker that feeds that room. All the PC's have PFC powersupplies so they can run on 220 or 115.