I'm gonna guess no - a suped of Heal is plenty good and a CSW to top off the squishies.
I have empower healing and want to drop it. I've run with it OFF for the last couple weeks and it doesn't seem to have been a problem.
Then I would pick up maximize. The thought of a maximized blade barrier for 35+25 = 60 instead of 35x3 = 105 sounds really good to me.
I have maximized on one of my capped Clerics and I occasionally (accidentally) leave it on when healing. Won't be so bad now.