I ordered a Line 6 GuitarPort, but didn't get the RiffTracker (Riffworks) recording software with it. Does anybody have any recommendations for recording software (just recording guitar) for under $150? Anybody use any software other than RiffTracker with their GuitarPort? Such as Cakewalk Guitar Pro or Cubase SE? Or, would it be best to get the RiffTracker ($100) as it is supposed to be "seamless" when using with GuitarPort?