for the classic 50 recording I miced my peavey classic 50 with an SM57 and went straight into my soundcard. For the 12-string recording I pluged my 12-string into 1 channel of a yamaha powered mixer and an SM57 in a 2nd channel and placed it close to the soundhole of the guitar, then balanced the 2 channels and went from the RCA outs of the mixer to the RCA ins on my soundcard. The rest of the stuff was done with a PODxt and POD Pro, can't remember which was done with which though.