Yes! I just ordered both at the same time.
The rebate offers are different and it asks for a "copy" or the receipt/packing slip. You can order both together and are good to go. Just make sure you send both rebates in separate envelopes.
Thanks, I added 4pts to your rep for answering that question. I was reading through both threads looking for the answer to that. After reading your post I ordered both plus the hard drive bracket. Since I have ShopRunner and use LOTs of these sorts of things I see no reason not to.
Thumbs up to the thread and reps added to the OP!