So ya there are all these guides floating around about how to train a cleric..... Here is what I suggest clerics do after the tweak in dungeon exps:
level 1-30. wack away/duo/aoe w/e you want just hit 30.
30-any level, live in dungeon and duo aoe with mage or join aoe pt.
About the money........ the higher level u r the more u make
so lvling comes before anything.