I'm very hyped up for Dawnguard, I'm sure many of you are too, but I want to make a heavy role-play play through of the expansion, so I am curious if anyone knows what I should take as a Vampire hunter (Skills, weapons, etc.). Everything including a background story is set. Thank you.

I would recommend light armor, archery, sneak, and one handed(for daggers). Oh, and fire enchantments.
ALSO: You have a fantastic first name.

I reied making one, and am still unsure.

I think Range should be your main focus, with light armor(scaled) to be a bit more nimble.
Use restoration a lot
You can dual weild or use it with a shield (preferably axe)
some stealth abilities

Thats actually as far as Ive gotten, Its simply not my play style and I have a hard time sticking to it.

The alternative is just your typical warrior


I have a great RP for it and everything, its just not my style

Well, if you're hunting them, they've done you a grievance. There's a bullet point for your backstory.
As for skills, Destruction and specializing in Fire magic, and take up a weapon of your choice, preferrably one that allows decapitation on it's perk tree.

Would be surely funny to hunt them... I always loked the hunters better than vampires. In every case. So I will be a vampire-hunting werewolf, I guess

A true vampire hunter is also a witch hunter and does not specialize in useless magic.

If anything a true vampire hunter would use Archery, light armor, one handed swords, alchemy.

I'd say Archery for sure, Crossbows are the main weapon you're going to use.

Here is my variant on the old Witchhunter builds from Morrowind and Oblivion:

Main Skills:
Archery. - for crossbows and keeping true to the archetypal image of a vampire hunter
Restoration - turning undead and healing is always useful (think of your D&D paladins and clerics)
Enchanting - for fire enchantments

Minor Skills:
One Handed - for when ranged combat no longer works (perhaps focus on maces?)
Stealth - for skulking around crypts and stealth attacks
Alchemy. - fits the Witchhunter image and helps with buffs and poisons
Light Armor - keep it light for stealth

Personally, I might add smithing just for access to the dragonbone weapons coming out, but we will see.

Witch Hunter stuff pretty much. I did a Build on it back when we got that picture of Dawnguard.
http://www.gamesas.com/topic/1370903-the-slayer/page__p__20710845__hl__the%20slayer:%20build__fromsearch__1#entry20710845