Please take a look and the following products.
These are resources that I personally use and recommend. Click on the links for further information.
Yahoo Jazz Guitar Group (YJGG)
The free discussion group for Jazz Guitar and Jazz Guitarists. Topics such as chords, harmony, theory, practice methods, recordings, and equipment are welcome.
Band in a Box
Band-in-a-Box is an intelligent automatic accompaniment music software program for your multimedia computer. You can hear and play along to many song ideas and go from “nothing” to “something” in a very short period of time with Band-in-a-Box as your “on demand” backup band. Band-in-a-Box is a powerful and creative music composition tool for exploring and developing musical ideas with near-instantaneous feedback.