Ok, for anyone who hasn't got there yet, here's my rundown. If you want jackets/rainsuits, hit BMW. If you're looking for t-shirts, go to the speedway. They are seperate, and the tent at the BMW shop has a better selection, but it is from store stock, so not as heavily discounted. For example, the Bonneville 50th anniversary long sleeve T was $25 at BMW, but I got it on the 2/$25 at the speedway. Also nicked a hooded sweatshirt for $25 which was $49 at BMW. But the dealer does have Integra jackets for $99 in red or black, and several other good deals on the more expensive stuff like leather. There are no jackets or leather goods at the speedway. Hope that saves someone lots of running back and forth, which I just (selfishly) did for ya!
Oh, and wear a jacket, it's fuggin' cold out there!