Adorama has a couple of solid deals on Canon EF-S lenses right now. (Note, you must add them to your cart to see the deal price.)
Canon EF-S 10-22mm f/3.5-4.5 USM for $679 (reg. $859)
Canon EF-S 15-85mm f/3.5-5.6 IS USM for $639 (reg. $799)
I’m not sure when these expire, so these deals may or may not be around for long.