Canon USA has the 5D Mark III refurbished for $2,669.20 right now (compare to $3,499 new). The camera is listed at $2,719.20, but you get another $50 off when you checkout thanks to a $50 off purchases of $500+ promo right now. The deal also includes a free Canon 5D Mark III 8GB USB drive. Check it out here at Canon USA.
These deals usually sell out pretty quickly when Canon USA posts them.