There are several models of the Accuquilt cutter out there now, but they're all hand-crank. Here's a comparison of the three machines they make:
http://www.accuquilt.com/fabric-cutter-comparison
If you do a search on Accuquilt here, you'll turn up a lot of threads about them and get plenty of opinions.
We use an Accuquilt Studio cutter and it's pretty awesome for cutting various shapes and strips.