Digital Switchbox Ideas?

Hi gang.
So I've gotten myself into a predicament. I have multiple digital sources (CD, DAT,DCC, etc.) that I would like to run through my DAC, which has only one RCA coax input. Any ideas on some kind of switchbox I can use? I figure that bits is bits, so if I keep it in the digital domain with decent cables it should still sound OK. Any thoughts?
Thanks in advance.
MSB's digital director,for one ;I'm sure there are others.
Thanks. I had never even heard of an MSB Digital Director. It looks like that's exactly what I need. Maybe I should spend some time listening to the AV guys... :-)
Stuck in a two channel world....