HTPC interconnect???

[Noddy]

I have set up an old pc which has the apple ipod software installed on it. My plan is to load my cd's onto this pc for playing music through my ht and thoughout my house.
Some time ago i saw a interconnect which would link a pc to a av receiver by a composite video a/v lead.

Does anyone know where i could purchase one of these leads or something similar to do the job??

thanks, Matt

[Noddy]

Just had another look at the pc and it has an optical out so i suppose i only need a way to feed a pic signal to the pc from the receiver as i want to use the flatscreen monitor to preview dvds. I tend to listen to dvd concerts thoughout the house and this will prevent me from firing up the projector to navigate the dvd menu's, if you get what i mean.