I bought my 5D2 refurbished from Canon and it was a great deal. The camera has served me well. No issues.
I was hoping for the full 20% discount they offered late last year. However, after the 15% discount showed up over the weekend, I called at 6AM our time on Monday morning and ordered the camera because they can run out of stock very quickly sometimes. Their website won't accept our small town address as being in the FedEx database so I always have to call.
It looks like the stock lasted for a week this time. Not too bad.
I've tried to get one with the Canon Loyalty Program before, but they were not available yet. I see a Nikon D3 for $1800 locally, I've been thinking about buying and playing with it, but then I do not want to go back to 12mp.