There is a Haier that will hold 3 that is specifically marketed as a kegerator. There is a guy on eBay selling them in various conditions for different amounts.
Also locally here in LA I bought a Chinese knockoff from a guy on CL that has a bunch of them. It holds 3, and I stuck a 3-tap tower on it in addition to some other mods. I don't think there is any brand name associated with it.