I'll take a shot at it, but first- acoustic or electric guitar, or do you use both? The answer to that question seriously impacts your options. Also- are you willing and able to play the guitar onto one track without singing, and then overdub the vocals, or is it necessary to play both at the same time? Other questions- What kind of available budget do you have to work with, what kind of room do you have to work with, what kind of guitars and other equipment do you already own, and what are the specs on the available computer and its sound card? Answer all of that, and lots of people can help you. Be forewarned- there are a lot of ways to skin that cat, and you are going to get a bunch of answers that will not be the same.-Richie