The guys and gals over at our sister blog Engadget were keeping busy at the recent CES and have turned up some interesting products with a Mac angle. In the video above they're checking out a new music instruction software package called Guitar Wizard which works a lot like the Guitar Hero game (our coverage). The key difference is that Guitar Wizard uses a real guitar and actually teaches you something about playing. The kit consists of the software and a midi pickup which can be attached to your own guitar for $150, or you can get a kit that includes a guitar as well for $300. New songs will be downloadable at 99 cents each.