B&H has a bunch of new deals on various Canon and Sigma products that may be of some interest.
Clearance of EOS 7D accessories has begun, you can get the BG-E7 battery grip for $109:
Canon BG-E7 Battery Grip for EOS 7D $109
You can also save $200 on the Sigma 150-500mm f/5-6.3 DG OS HSM APO:
Sigma 150-500mm DG OS HSM APO $869 (Reg $1069)
All of these deals come with free expedited shipping in the United States.