In some of the stores around here, you can pick up a/v switchers for people with multiple console units. I saw one recently that matched a Playstation2 look and went for roughly $20. (Has 4 or 5 inputs. Here's an
example of one.)
You'd need some small patch cables for the type of audio cables used on computers, but seems to me that you should be able to use something like this for $35 - $40.
