I used to be full holy spec with just enough points in prot to get kings, and when I respecced to mostly prot, I didn't do any in holy (cause I wanted improved ret aura) but I can see now that the points in ret aren't necessary, as BoSanct does more dmg anyway. I'm probably gonna respec (again, ugh) and put the rest into holy. Having more INT always helps, and for self healing, spiritual focus and conc. aura are must haves. When WotLK comes out, we get 10 more points at 80 (and even better gear) so you could do mostly prot, a bit in holy, and still go 10 in ret to get Deflection (increased parry) Then it will be extreme ezmode. Hell you could probably boost in outland instances...

But, I was able to watch my health go up by as much as 5% with my skullflame shield. Its lifestealing proc must be going crazy. That and JoL keeps me up pretty good. And there's always LoH. I used to always get improved LoH, but even then the CD is sooo long, that it's only worth it if you are deep into holy as a raid main healer, and are already OOM...

My alts just hit 30-31, so a bit more SM boosting (which is getting faster BTW) and it's off to ST. Too bad the new patch and lvl 30 mounts aren't out yet, it'd be a whole lot easier with mounts and crusader aura.