Post by oddbrown
As well as the sticky the Daemon wisely points you to, you should also have a look at
Elitist Jerks Priest Section.
It has some fairly standard builds posted as well as pretty sound advice about gear, gems and all the other healing stuff you will need to think about.
Edit: I forgot to include my build for you :S
I use a standard cookie cutter
IDS (23/38/0) spec and it does me just fine. Self buffed I have around 1200 healing and over 450 regen O5SR (or 165Mp5 if you prefer that figure). This does me fine for T4 and some T5 content raids as well as making me viable for some of the easier heroics.
The other cookie cutter most used is the
CoH (20/41/0) spec. This requires over 1400 +heal to be a useful spec for endgame situations though.
Hope that is of some use to you.
Check out
Korpimieli's Healing Spec Thread too for an in depth discussion on good builds and how best to spend talent points.
Post by Yevon
Well he's mine, it's only good in PVE
http://www.wowhead.com/?talent=bxMRzhZfEzcfMqVzAo Hope you the best of luck.