Why not buy a plus deck? :) What exactly is it that you want to do? If you want to digitize cassette tapes I would use a stand-alone tape deck with line outs connected to the line-in on your sound card.
"I'm not lying. I'm writing fiction with my mouth." - Homer Simpson
Unfortunately, I do not have any cassette player and have just over a dozen cassettes that I wanted to digitize/convert to mp3. Spending $120 for that seems a bit too much. I was looking for a similar, cheaper device.