How to play Paladin?

[Coin-coin le Canapin]

Hi!
I've finished both KB:TG and KB:AP with a warrior.
I've also played KB:TG with a mage.
I see how you to play these classes, and it's quite easy to understand.

I'd like to try the Paladin on KB:AP, but I don't really see what kind of gameplay to use, especially about spells.
Can a paladin use destruction spell with efficiency?
Does he have to focus on "support" spells like rez, various buffs and so on?

Well, if you just can help me about the way to play well with a paladin... :]

And sorry for my horrible english.