Multiple Line-in switch box

I am looking for a high quality (but affordable) audio switch box to connect multiple (minimum 2 - prefer 3) audio sources to my Audigy Line-in port. I have 2 PCs that I use all the time and my primary system has the Audigy and a set of Logitec Z560 speakers (highly recommended - BTW). I would like to hear the audio from the 2nd PC through the Zs and use one set of speakers - but the Audigy only has 1 Line-in port - used for my ATI All-In-Wonder TV audio. I tried using the mic-in but the noise level was unacceptable. I have used a Radio Shack switch box with RCA jacks but there is a quality degradation (either with the box/switches or RCA/Mini/RCA cable/connectors or their combined affect) and inconsistent connectivity during switching (I have to press the buttons several times for both channels to come in correctly).

Ideas?

Thanks,

Bill

 

Take a look here. It may be what you're looking for.

 

Hmmm - no that's for sound stage, guitar amps, PA systems and the like - but thanks for looking.