So I just bought a used 15" MBP on Amazon. It was listed as MD318LL/A, but after reading the comments I suspect it was this model: MC721LL/A. I only paid $1180 on it and I have a $200 credit card cash back offer, so it's a decent price I think. I'm going to be using the laptop both at school and also on my desk at home. My question is about pairing my keyboard/trackpad with the computer. In the past if the laptop was away from the bluetooth keyboard/trackpad, it'd be difficult to reconnect them. Are there any tips for this? If it becomes a problem I might just buy a wired keyboard so I don't have to deal with the problem. Also, any recommendations for a stand to use while using the computer on a desk? Thanks for your help!