Cool vid, Great healing.
I was wondering why, since you use it to target people, do you have the Ops. frame up in the corner like that and not somewhere a little bit more convenient? I keep mine in the middle just below my character in between my hotbars and it seems like that is much easier than having to zip back up to the corner.
The only thing I don't like about it is the fact that I have to move back after doing targeted AoE healing. My mouse sensitivity is insanely high though, so it's not as much of an issue as it could be (moving from the center of the screen to the left is about a 2 cm twitch). The reason to have them on the left is so that my eyes are close to the location of my heals, allowing me to see cooldowns more easily. You'll notice that all of my healing abilities are also stacked on the left. This keeps my vision localized, which I'm more concerned about than my input device.
It does get a bit bulky when I do 16 man healing, but there's almost nothing to be done for that.