Mark,
Good! You did your pre-York assignment!LOL! By 2pm on Thursday, your head will be spinning like a top from all the tables and halls to visit. One big train Party! Advice from many, bring a pen and paper to write down something you saw if you want to wait and buy later. But, most will say to buy it when you see it if you really want it as it may not be there later and/or you can't remember where you saw it.
Ted