There are new Canon double instant rebates available that include the Canon 5D Mark III as part of the rebate package deals.
B&H has a dedicated page for the applicable cameras and lenses. The rebates are set to expire June 2, 2012.
There are some pretty solid rebates on Nikon DSLR and Mirrorless cameras through the end of March. Details here at B&H Photo.
The Canon 5D Mark II, 7D, 60D and Rebel models have some pretty big instant rebates with lens bundles through March 3. Details here at B&H.
Several Sony lenses are up for instant rebates ranging from $25 to $50 off. Full list of lenses and details here at B&H Photo.
The Canon 60D, 7D and 5D Mark II are for instant rebates along with several lenses that offer double rebates when you buy them together. Details on all the lenses and bodies here at B&H Photo.
Just a little over a week left in the Canon Instant Rebate program for Lenses and Speedlites, as well as the DSLR combo rebates. Both of these were previously extended through January until February 4, 2012.
Details on specific products and combos via the links below.