I ordered my 20" iMac High End model with the free nano the other day. THe nano has been shipped, but not the iMac. I used my student discount. I now changed my mine, and instead of waiting for the 22nd, I'm just going to the Apple stor in VA to pick it up. Will this work? Can I cancel my iMac order online, and go to the store and use my student discount there? And when the ipod nano comes, just fill out the rebate and return? College starts the 27th, and I can't wait that long before I enjoy my iMac.