Well, I would say find a good LBS. They should be able to order in an appropriate frame. I just went through this with my Dad and myself. We are both very small people and need the smallest frame possible. So, opposite of your issue, but same. In the end, we both found bikes at my fave LBS because they always have a TON of sizes, but if we would have gone back to the one store, they would have ordered one for him.

They don't have a lot in your size because a lot are waiting for the 2011's to come in, but if you are serious about trying one, they will do it for you. A good one will NOT pressure you to buy.

I don't blame you at all for wanting to try the WSD before committing. Unless I try something, I am not willing to buy. Sorry. That is silly. But you can have them order you one in to try, which is what I would do.

Good luck and I hope you find the perfect bike!