Former Guitar Player Magazine editor Joe Gore (to whom I owe my role as GP Consulting Editor) gives a great demo of the looping process. He also shows one possible method of combining guitar, laptop, software, and external hardware in this informative video. Here he uses a MacBook Pro laptop, Apple’s MainStage software, Native Instruments and SoundToys plug-ins, a Boomerang III looper and Side Car, a Keith McMillen SoftStep MIDI control pedal, and a James Trussart Steelcaster. Be sure to check out his sites: tonefiend.com and mental99.com