A lovely statement from the old crawler today. That's exactly what I've been missing in holy - some synergy between all those healing spells.
Holy Concentration and Surge of Light are very good, but I also think that they are a little bit annoying (as I'm sure I've written somewhere else around here). The annoyance comes from not being able to react to them in time when they proc in stressful situations and hence feeling that you can't make optimal use of them.
"What the heck happened there? Oh, SoL procced and made my Flash Heal that I had already decided to cast instant."
"Oh, I have Holy Concentration. But I'm already casting a Flash Heal. What a waste. Is it worth aborting it?"
Ah well, enough ranting. There is hope again!