mini - usb audio line in?

[dubhe]

I did a quick search and didn't find much. Trying to find a usb line in for my dad's G4 mini, there is only a headphone socket on that old machine. He wants to rip his cassette collection to iTunes via his high-end tape machine's line out.

Obviously there is the Griffin iMic, but I was hoping for something a bit cheaper, foundthis on eBay, think it is any good?

Thanks.