Took a break over the summer (always do) and just bought my 5 pre-orders for Cata. Was planning on getting started with everything again but it looks like a lot has changed in the last few months.

First ... /click ... is that totally removed or just ,,,,?
How, exactly, do you account for abilities on a cooldown now?

I dug around this forum for a bit, but I seem to be missing something - a quick note to clue me in would be appreciated.