Take a look at my setup here.
I use an HVR-900 which has both Composite and Svideo capture (as well
as DVB) you can pick one of these up for about $10 at electronic
hardware stores..
https://lh5.googleusercontent.com/-oPlLaqXBtbM/TfQa3V6jqoI/AAAAAAAAFt0/Mwav…
Here's a link with Free shipping:
http://www.dealextreme.com/p/easycap-usb-video-capture-adapter-5707
It's only $8!