Good timing. Just finished watching the entirety of the Hellsing anime and I'm getting an itch to play a vampire.
I've played two games of Vampire: The Masquerade, and what I can tell you is that there are several clans of vampires, each with unique abilities(called Disciplines). Characters are built off character points, and there is a lot of skill use in the game. I've never gotten into a combat with it, but my impression is it's a game that benefits from the player's wit more than D&D, and combat is more of a plot device than the objective.
Die rolling is rolling a number of d8s vs. a target number. The rolled dies each go against the target number seperately: it's not a collective sum. So if the target number is 5 and your skill level is 4, you roll 4d8 and count up the number of dice that are 5 or higher and those are the number of successes. The number of successes determines not only if you can do a task, but -how well- you can do it. Rolling a "1" cancels a success, because there is always the element of (bad) luck. And rolling more 1s than would-be successes counts as a "botch" where something goes very bad.
'course I'm not the GM you're looking for, but I would love to play again and can answer simple questions about it.