I always wanted to have one of these. I so wish the Circuit Mono had a drum kit built into it too like this has. Love the controls it offers.
If you've not seen it, I know one of the guys from Isotonik. They made a great editor for the Circuit so you can get under the hood and change a whole load of things about it.
You need a computer of course and, for me, that kind of removes the magic a little bit.
RE: Dirty bass jam with Novation Circuit