NWN: what about Cleric/CoT/BG?

[Tirzan]

Just created a Cleric to go through OC-SoU-HotU. My idea is to make it a "battle cleric" with buffing spells and good combat abilities from CoT and BG.
Do u think it's a good way to multiclass or not(don't name alignment restrictions!)? If not what do u suggest?

Second question is how many lvls of CoT and BG should i take? Thought about two ways for it: Cleric 9 / CoT 10 / BG 21, or Cleric 20 /CoT 10 / BG 10

[Lightning Rod]

I've not played as a cleric, but reading the spells getting greater dispell at lvl 6 sounds good. Don't you loose advantages by combining CoT and BG? CoT is any non evil and BG is evil only. I have always been careful to combine evil/evil or good/good.