Usually there is a Doctor Who gathering, and I know often it turns into a Doctor Who/BBC gathering. Everyone there is awesome! The photoshoot last year had such an amazing turn out. While I don't typically cosplay Doctor Who (did fem!Ten for RI Comic Con), I always make sure to make it to at least one photoshoot, as the cosplayers are fantastic.
Here's a link to the Doctor Who thread on the AB forums if you haven't seen it yet:
See you there!