What level are you respeccing at? 70? For the most part, it's a very good build.
Lightwell is called Lolwell for a reason. It's about the worst place your can put the point. Don't try rationalizing it as worth it in certain situations either - it's not. The only time I can see it being marginally useful is fights where the raid shouldn't be taking any environmental/AoE damage anywho.
Mental Strength is only good in PvP and 5-mans. By the time you get to heroics and raids, the Clearcasting and extra healing from EmpHealing by far eclipses that minuscule amount of mana. Clearcasting combined with Inner Focus can potentially get in multiple ticks of spirit regen - and one CC proc in and of itself gives back almost as much mana than 5 points in Mental Strength! So, I'd take a build something like
this.
Circle of Healing only really becomes powerful once you get into TK, SSC, to some extent Mag, and Netherspite, at which points you're taking more and more raid-wide damage (essentially every trash pull until Void Reaver, at least, in The Eye). Until then, the previous build will suffice. If you get into TK/SSC, I'd suggest something more along the lines of
this, grabbing Circle of Healing and Spell Warding, to reduce some of the AoE damage you take, since you'll be taking spell damage in almost every single fight. Spell Warding is the one talent that's really debated as useful or not; if you don't feel it's worth it, stick those points in Healing Prayers, Absolution, and/or Mental Agility.
Edited, Oct 8th 2007 3:29pm by lsfreak