I use a product by Xitel called INport. Allows you to go from RCA-out (your amp Tape Out) to USB 2.0. Two programs are supplied with the product that allow you to record to .WAV file on your computer, and then edit the tracks afterward. You then burn to CD. The USB route is much better (less electrical noise) than the sound card route. I've had very good success with it, and think the finished sound is quite good. Xitel includes all interconnects required. You can also use this device to record from any analog source-minidisc, cassette, analog-out from DVD, etc.
Karl