We did the first part of ICC this evening, and I spent most of my time smite healing. I went ahead and traded out my mass dispel glyph for the smite one so it would always be ready. The end result was a lot of fun, with me able to contribute 2k dps while single healing some of it, and coming out as top healer on the rest. I deliberately did not link absorbs into the heals report, because I didn't want to make the other healer feel bad.
It was really a lot of fun, I didn't miss doing as much bubble spam, and with all the ArchAngel in play, mana wasn't even a consideration.
I know it's old content, but it was fun.