I picked up the one from Walmart with the bonus dvd. It's basically the prequel comic, but with voices thrown in. Interesting note: voicing Megatron is FRANK WELKER!
On a different note, I finally got around to watching the Bon Jovi SNL. It's th best of the season so far, which isn't saying much. I agree with everyone's take about the Digital Short, the Dane Cook spoofs and Iconoclasts. Funny funny stuff.