Vampires, and house rulings. Options

[Sir_Psycho]

An invisible way adept I GM bores the shit out of me. The only interesting thing is his dependant flaw of a girlfriend. I recently had him screwed over and left unpaid and bleeding in the water off a downtown seattle pier and he's looking to track the johnson down.

I've decided for shits and giggles to make this johnson a Vampire or Nosferatu, and the two adepts he has doing his dirty work Vampiric Pawns. I'll keep this a secret for a while, as I have the character going after this guy.

Once Vaziel (the character) doesn't get the point. I'm thinking of having the vampire seduce his girlfriend, and in the process make her a vampiric pawn, dependant on his blood enzymes.

The only way to deal with this and the vampire to get vaziel to leave him alone after a while without his girlfriend dying from lack of vampire blood will be for Vaziel to take on HMHVV to uphold his dependant flaw, and ultimately make roleplaying this character a little more fun due to the aversion to sunlight and of course, nightly need for blood.

Edit: Also, are Vampires dual natured? I know ghouls are, but does HMHVV have the same effect astrally?

However my problem is this, Vaziel is not a muncher, and I don't want to super power him. Obviously I want perks to be added, and he will be more powerful and i'll raise the difficulty and power level of his opposition accordingly. But regeneration? you can nail him with an S wound and next phase it's GONE? Mist form? he's a stealthy guy, mist form will just make his job ridiculously easy, popping through cracks in doors and such. Nosferatu thankfully have no mist form, but they also don't get nailed by the wood allergy, and have a bunch of psychic powers like compulsion, fear and influence.

So what do I do? Vampire or Nosferatu? tone down regeneration to one box of damage per phase maybe? Throw in a silver allergy to boot (even though it's not canon)? Smack him with some flaws?

Has anyone got any slightly balanced house rules on this they can give me?