The rumored Canon rebates are now live @ Adorama (just a week after Nikon announced their rebate program):
Lens Rebate Direct link w/5D Mark II w/5D Mark II Kit 200 F2 $500 direct link direct link direct link 85 1.2 $130 direct link direct link direct link 50 1.2 $100 direct link direct link direct link 16-35 $100 direct link direct link direct link 45 2.8 tse $80 direct link direct link direct link 24-70 $80 direct link direct link direct link 100 2.8 IS $65 direct link direct link direct link 15 2.8 $45 direct link direct link direct link 135 2.8 $35 direct link direct link direct link 100 f2 $30 direct link direct link direct link 580ex II $25 direct link direct link direct link 430ex II $15 direct link direct link direct link 16-35 & 580 direct link 24-70 & 580 direct link 50 1.2& 580 direct link 85 1.2 & 580 direct link
Some Tamron rebates:
Some of the recently announced Sigma products are now available for pre-order: