Band in a Box Software or Sequencer?

[TheRealEddie]

I'm looking into buying something to play accompaniment for Jazz piano. I'm mostly interested in being able to have a bass/drum section behind me to practice to. I've seen play-along-CDs and sequencing devices, but I saw this Band-In-A-Box software that looks pretty good. It even says it can pull the chord changes from an mp3.

It would be great to have a ton of standards already built-on, but also programmable to add non-standards.

Any musician's in the oracle that have any advice?

thanks!!