so at work today i think i may have seen the "big yorkie" you probably saw at the event. did it look like this?
http://photos.signonsandiego.com/gal...0225briard.jpg http://www.dogsindepth.com/herding_d...briard_h03.jpg
if so, its called a Briard. they are very cute, non-shedding, herding dogs.