My current character that I'm building for Dawnguard: Breton, playing on expert.
One Handed
Archery
Alteration
Restoration
Enchanting
Can strike from afar or in your face with weapons, and relies heavily on restoration and alteration for defence. Armors and blocking are for wimps!

The way my perks are set I should reach level 44 with this build so a few perks left available say... if new skill trees are involved!