AlienSlof's gentlemen's clothing type mods come into mind here immediately. She's got her Bazil since her Morrowind modding times, who, if I'm not mistaken, IS a vampire, and she did quite a lot of items in exactly this style for him.
The lady's website is definitely worth a visit (she's hosting most of her mods elsewhere, so you'll be having a hard time finding her stuff on the Nexus):http://www.slofslair.co.uk/
Other than that, there were some other mods, mainly item shops, with a collection of items of similar style, but I can't recall any specifics anymore.
Anyways, if it's attire for vampires or gothic style in general, lady Slof's mods would be the first place I'd look for it.
(god, I sound like a fan-boy...)
Edited by DrakeTheDragon, 06 May 2013 - 01:34 AM.