i came from a 40D to a 5D2.. the biggest thing i missed was the cross AF points on every sensor point. that aside, i love my 5D2 for what it gives me over the 40D 
i don't need the cross AF points for all my work so i can live with it till an able replacement comes along. if you can live without them, i think you'll enjoy the FF

i don't need the cross AF points for all my work so i can live with it till an able replacement comes along. if you can live without them, i think you'll enjoy the FF
