I'm in the process of setting up my home theater, and this may sound like a dumb question, but as I'm trying to figure out where to locate everything I was wondering how far I need to keep my subwoofer from any other electronics? Will the sub cause damaging vibrations to other electronics if it's placed to close to other equipment?

If your sub is powerful enough to shake the room, proximity isn't going to matter much. The only thing I've seen to keep the sub away from is a projection TV due to the magnetics.