A friend of mine, a Brit living here, becomes a father today. I'd like to take him out to "wet the baby's head" as he calls it, preferably at a bar where he can find a proper British pour. Can someone steer me in the right direction?
Off the top of my head, I think that The J. Clyde, Dave's Pub or Innisfree would likely be the closest things to what you are looking for.
Blackwell's is okay, but not even close to what this guy is looking for. Dave's (though it has a great bottle selection) and Innisfree are even worse choices considering what he asked. I'd say the J. Clyde is your best bet, although still not authentically British (or even trying to be).
I recommend J. Clyde because they are one of few places that takes beer seriously enough to properly consider serving temperature and glassware. They are the most likely to know how to do a proper pour there as well, although the overall service can be spotty, to put it politely.
British style beers aren't my favorite, so I can't tell you off the top of my head how many beers you'll find in the British tradition on tap there, thought I'd be surprised if they didn't have at least one or two.
Service at J Clyde is horrible. But they have Fuller's ESB and Porter on tap, as well as a wide variety of Americanized British ales.