I love how people want to play variants without knowing what the base is.
"This strange elven looking being is a drow of some sorts, standing at around 8'2 and weighing around 400 to 500 lbs he looks to say the least, intimidateing (see pic) "... right. Drow don't generally take kindly to cross-breeds. He's unlikely to be part of a house at all.
Anyway, it's much easier and more realistic (bah, as if realism was ever involved) for a drow to play their own char without dragging the house leadership into this surface tavern in a mainly human and very xenophobic town on another world. Yes, I'm including Sril've Cress in this, even though SC is bizarre enough that nothing really applies.
At least make it clear that he has to be from another world. Oerthian drow aren't allowed in the tavern at all. Faerun and other-world drow are okay, but they should act like they know they can't show their face on the street outside the tavern.
If he insists that his char is part of a drow house and therefore acquainted with standard drow custom, then these links will probably help:
House Maerdyn Translator :
http://www.grey-company.org/Maerdyn/resources/translator/index.cgi
Their information on traditional Faerun house structure is also good:
http://grey-company.org/Maerdyn/resources/houses.html
This site isn't so bad, it gives nice details on culture:
http://www.realms.force9.co.uk/UD/
This one, I'm not so sure about trusting:
http://drowcampaign.roleplaynexus.com/
There's another site I like, but I can't remember the name well enough to find it and I don't have the link saved on this computer. I'll post it another time.