Hi, Long time MacRumors lurker here. I searched for this online but couldn't find an answer so I was hoping I could find help here. I currently own a 13" running OSX Snow Leopard, Some software I am required to use is not compatible with Lion. Also, to be completely honest I must prefer Snow Leopard over Lion, having used it on a friends machine. Anyway, I was looking at the Apple refurbished store and am undecided between these two: http://store.apple.com/ca/product/FC721LL/A#overview http://store.apple.com/ca/product/FD318LL/A#overview hardware wise, it makes sense to spend the extra $120 for the improved graphics and .2ghz processor speed. however, My concern is if I go for the October 2011 model, I realize you must got through many hoops to run Snow Leopard. So my question is, If I go for the February 2011 model, would the fact that it originally shipped with SL make it easier to downgrade from Lion to Snow Leopard? Would it be as simple as restoring from the included install/restore discs (if they still include those) Or would I be able to simply swap hard drives from my existing 13" to the 15" I read there was a firmware update which blocked users from downgrading from Lion to Snow Leopard, Would a February 2011 refurb include that firmware update? Thank you in advance.