Return of Reckoning

Hello guys ,

I'm new to RoR , can you guys give me some info about Shamans :
1 - Heal
2 - DPS
I read most of the topics , and see that Shamans got massive nerf , and to be usefull on my team i shoud be full heal or dps ,if i understand correctly.
Can you give me some build links for full DPS ...

So if i understand correctly , If I want to play as Shaman I have to be full dps or full heal spec
otherwise I'm not gonna be useful to the team.
Can you give me some build links for full DPS , and full Heal - that is actual at the moment.