FInally had this surgery done and am just wrapping up week 3.. I don't know if I'm lucky or an unusual case, but the pain has been no big deal at all, and I crutched out of the hospital 5 hours after the procedure. The cpm machine has been my best friend, and the 45 staples were the only annoyance apart from the NWB. Didn't bother with painkillers apart from Advil.
At any rate I found these forums very helpful when I was contemplating the surgery, and promised myself I'd be available to answer any questions from anyone considering it. fire away if anyone. needs more info!