So I am diving full on into photography again as a profession and am looking to upgrade my 30D and am trying to decide between the 5Dmk2 and the 1Dmk3 I will be doing mostly portrait , event , and commercial work if I was doing sports the 1Dmk3 would be a no brainer but not needing the frame rate I find myself in a dilemma and looking for opinions and advice if anyone owns or has used both you input would be greatly appreciated. Thanks