Aight, the best info they had to offer was to look at prosumer video equipment. There are 12 and 24 port video switchers, but the cheapest one i could find was like $500. Ah well. Looks like daisy chaining some 6 ports would be the cheapest route.

My Kenwood reciever has 6 or so video inputs, and i've hooked a switch up to two of them, giving me 4 ports each on 2 of the six video inputs. Not to shabby, but what you are looking for would rock. There might be some money to be made there...