Well.. The bahia is in San an Bay.. i went for 2 weeks and took £1100.. and believe it of not.. i ran out of money! if you go with 18-30 or 2wentys like we did. i reccomend doing everything they offer.. there all brilliant days out..
The hotel Bahia was very very nice too. bearing in mind your going to party for 2 weeks straight.. i was expecting something clean and basic, but you get a pretty good shower, amazing views, friendly bar staff... although.. watch out for the fonz at night time.. if he's still there!
But if your going for 1 week, i reccomend you take as much as you can afford. you won't regret it.
The clubs we hit were, Eden, Es Paradis.. which is amazing, Manumission, which is a must, amnesia, Then just up in the west end really.. but we werent going out till gone 11-12ish.
hope this helps!