San Diego - Over 21 Night Clubs

Does anybody have any experience with the nightclubs in San Diego? I moved to San Diego about three months ago, and insofar have only been to P.B. Bar & Grill (Club Tremors is attached) - which was pretty nice - and Club Decos (I get in for free, through a contact). I've been thinking of going to other clubs, such as Envy or Sin one night to see how they are, but I'd rather have someone give me some information and guide me in the right direction.

If anybody needs any clubs in Madrid, I'd be happy to help you out... I've been to most of them.