Get 15% off Canon lenses with code BTENCHG53 at Newegg,
The 15% (Up to $300) is on top of the Canon instant rebate.
This brings the 16-35mmL to $1351, and the 70-200mm f/2.8 II to $1999.99.
Canon seems to be dropping prices due to slow sales even more. Be aware that Newegg has a replacement only policy, no returns if you get cold feet.