Play PS3:

I have never felt like I coudln't do it. That said, my first romp in 2.0 was to level ac/sch (healed all dungeons up through praet on my first runs) so I got practice from the get go.

Realy the GCD is your friend. You have plenty of time to select your next target during the GCD.

Field/fairy placement: its awkward turtle at first, I wont lie. But, I've gotten used to it and rather like it now. I find I can easily pre-aim one or two casts before I want to use one of these abilities and get them off. Even on summoner I've got to the point that placing flare doens't slow down my rotation. It is a bit odd at first, and maybe even clunkier than ti should be, but I can't really think of another option that wouldn't butcher the interface.