First and foremost happy birthday in advance. Secondly, I would try to seek out The Dissident from Deschutes brewery. It's technically an American Style Sour Ale but it's style is similiar to a Flander's Oud Bruin (Brown Ale). If you haven't had any offerings from Stone Brewery, certainly give them a try. Their Arrogant Bastard Ale, Barley Wine, IPAs, Imperial Russian Stout are fantastic! I hope to go there with my girlfriend upon graduation in December. Although I've only had one beer from Brewery Ommegang, seek them out! Their Ommegang (abbey ale) absolutely blew me away. I typically prefer triples to dubbels but this one sold me on trying out more dubbels. Their Three philosophers (quadrupel) was very satisfying as well.
Or you could go crazy and do what I did for my last birthday: Edward Terrible hands from Unibroue. I suggest if you decide to go that route, practice it before trying it on the big night.