If that is your first wedding you did an outstanding job.
The 70-200 2.8L IS, takes some getting use to. When I first stuck it on, I spent an entire weekend just shooting the h !! out of everything, that was a long time ago. I have it stuck on one 5D and the 24-105 4L IS, glued on the other (not really glued just both of those stay on and never come off) I'm use to them.
If canon ever makes the 24-70 2.8L, int to an IS I'll switch. When you start getting tired the IS comes in handy. When they get the bugs worked out of the 5DII, I may put the 24-105 on it and get a 24 prime and plant it on the 5D slipped into a pouch for those extra dark up close shots.
Good Luck and HAVE FUN.