I want to know which would be the best (speed and capacity) memory card for it?You have the wills and wits to decided to buy 1dx.. But not the knowledge that 1dx is using CF cards (as well as your 7d&5dII)?? and need an advice on which cards? SERIOUSLY???
I currently use 5d2 and 7d. Will the cards you advice work on these camera's as well?