This is an absolutely judgment-free zone, but alcoholism is no joke, and if anyone reading this thinks they have a problem I encourage you to look yourself in the mirror and get help if necessary.
I listened to this
Basic Brewing Radio podcast where they discussed this very topic. Bold move for a show whose listeners brew for fun. I think it's worth the 30 minutes.
For the record, 2-3 standard drinks a night. I'm consistently keeping tabs so it doesn't get out of control, and every now and again I'll go completely dry for a little while to reset.
Edit late: Just realized in context with the previous post that I may have come off as anti-Mitch Hedberg, and I can assure you that I am not and was not referencing the previous post at all. I also like to throw toothpicks into the forest and yell "You're home!"