This looks pretty sweet! For around $3K you get a really solid looking mod that gives you access to the vast array of PL mount cinema lenses for your Canon 7D:
The Hot Rod 7D-PL Deluxe Kit Mod allows the use of nearly every PL mount lens directly on the Canon 7D without extra optics, and maintains accurate focus mark by use of a shimmable mount. This kit is for owners of a Canon 7D who want to modify their existing camera. This kit includes the physical modification to accept PL mount lenses, a Hot Rod Central Support and Hand Held Grips (Canon 7D not included).
This is about the cheapest possible way to get a PL mount camera. Really amazing stuff. Head on over to Abel Cine to grab one: