CompUsa has an Online-Rebate, so nothing gets mailed and you can check your rebate status to make sure its processed.
The only thing you have to watch out for, when you return the product for exchange, somehow the online e-rebates, they screw it up. Somehow they lose you record for re-bates. So, my suggestion on this is just return the product, then BUY another one, don't exchange it.
Well anyway, since I was there to find out my hunch was correct (they don't have the one they advertised), I bought the Ninja Case 2 instead. After rebates, it only comes down to $20.00 and it came w/ 400 W PS.