Against the advice of many on this forum I went for the 550 since my use now is for holidays and family vids (minimum editing). Am blown away by the pic quality but less impressed with some of the extras. For example the GPS which could be useful is pretty hopeless, can take ten minutes to lock on to sats. and thats outside sitting still. My main concern is the transfer of files to the computer. The bundled program "PMB" is so clunky. Is there a better program for this. Windows file transfer works OK but doesn't give any sorting as to date/time etc.
By the way I seem to have no probs with simple cuts and transition editing on a 2.4 gig quad core and V9.