I bought a late 2011 13"MBP from the Applestore refurb online store about 3 or 4 months ago. I've decided that I'd like to sell this and buy a refurbed 17"MBP to make it easier for photo editing, etc. How do I determine how much to ask for the Late 2011 13"MBP 2.4Ghz i5 4GB with Lion 10.7.4? Also, what is the best way to sell it. Craigslit, Ebay, or some other venue? Thank you for your help.