Hey all. It's time to move on from my iMac 2009 model that I've had for years, I'm upgrading to retina Macbook pro. I need to sell the thing now, probably on eBay. I'm quite good at saving boxes generally and I still have the original iMac box. What I'm trying to decide on is whether this would be all I need to post, or whether it's necessary to put that in another, bigger box with extra protection. Will be insuring the iMac either way. Can anyone advise?