I have been using my 4mp 1D for quite a while since 2003. I am ready for upgrade to Mark II. Now this is my question: A used 1D mark II now would be around $2500-$2900 depends on condition. A used or new Mark II N would be around $3000-$3400. Is it worth for spend that $500-$900 for the Mark II N? I checked dpreview.com and kind of know the different between them which is not much. The best thing is to have a bigger 2.5" screen. Look like both camera have the same sensor and digi II chip. It sounds 500-900 is a lot of money for a bigger screen. Or there is other good upgrade of Mark II N I missed? Should I go for Mark II N or just but a used mark II? Thanks everybody.