Hey thinking of repalcing my PC box with a mini - figured I would use my screen, keyboard etc. and save a little over an iMac. And I know rumors defintely suggest I wait a bit in case new minis are on their way. But some questions for you guys (and gals) who know. Have a wireless keyboard/mouse combo from Logitech - can this be used on the Mini or does it depend on which version if it is Mac Compatible On memory am I right in understanding I can't really uprgade mini...