DJBruin: I received mine today. Indeed the packing slip has the price on it. Strange, I bought other stuff from Staples, last time two weeks ago, and this is the first time that the price is on the slip.
I am gonna send it anyway. The other times Staples honored the rebate (months later, of course).
I wouldn't worry if the model is different from the description on the rebate form, as long as the sku number matches, and it does. Besides, they were promoting the rebate on the very same page where you made the purchase!