Staples retail stores take 20% off most Canon digital cameras via this printable coupon. Sales tax is added where applicable. It's not valid on SLR cameras, camcorders, or clearance items. Coupon ends October 15.
Don't forget, if you're purchasing from Staples, make sure to use Mr. Rebates Cashback and get 2% cashback. For more information about Mr. Rebates, go HERE.