(ENDED) Canon D-Rebel Instant rebates heat up: add 55-250 for +$54, 75-300 for +$40, 70-300 for +$230

As of a 7/30/12 recheck, the Canon Instant Rebates have ended! Original post after the jump for the deal historians. The current iteration of the Instant Rebates has ended!

The Canon Digital Rebel Instant Rebates have heated up again thanks to price-drops in all three eligible lenses. The combined purchase stackable discounts (when purchasing the lens(es) together with one qualifying DSLR kit are as follows (as of the time of writing):
+ add 55-250mm EF-S IS II for +$54 (price is $204 minus $150 combined purchase instant rebate = +$54)
+ add 75-300mm non-USM non-IS for +$40 (price is $140 minus $100 combined purchase instant rebate = +$40)
+ add 70-300mm IS non-L for +$230 (price is $480 minus $250 combined purchase instant rebate = +$230) [this is not the lowest price in recent months though, it was going for $450 a few weeks ago before it sold-out)
+ lens prices mentioned above are as of the time of writing and they cannot be updated automatically in the blog-post text
+ see all the options and examples at the Canon Digital Rebel Instant Rebates page

+ this promotion ends July-28-2012 (unless extended again)

Example
Amazon improves the way the discounts are displayed at the top right corner of the Amazon Checkout page. This is a shopping cart with the Canon D-Rebel T3i w/18-55 kit, along with all three aforementioned lenses.

OPTIONAL and STACKABLE: PIXMA Pro printers with free 13x19 Canon paper
Optionally, you can stack the above promotion with the Canon Pixma Pro printer AMEX gift card mail-in rebate promotion which has a new promotion of its own. You get a free 50pk of Canon 13"x19" photo paper (luster or semi-gloss) when you add the qualifying printer along with one of the qualifying papers to your shopping cart. There is no coupon code to enter - the price of the free paper will be automatically deducted at the top right corner of the Amazon Checkout page if all is well [see screenshot crop example]