i really can't make up my mind with my warlock / mage talent builts

Was thinking just spam AM and wand when oom and use the following build ...

http://www.wow-europe.com/en/info/ba...00000000000000

I am level 49 and it is going fine I just feel a bit put out with putting talents in the warlock build which i might not use, just to spam shadowbolt..... to pair up the + damage with my shadow priest.

I've got my healing priest disc up to imp spirit buff for + damage from spirit on all chars, and then into the holy tree.

tankadin is straight forward.

Any thoughts? how would you spec

paladin
healer priest
shadow priest
warlock
mage