The first show was yesterday but you can still go either today or tomorrow. It’s a good way to see the Panasonic G1, Sony A900 and the Canon 5D Mark II in person. Sadly when I went their yesterday the preproduction G1 didn’t have a battery so I wasn’t able to see how it really is.

http://www.huntsphotoandvideo.com/content/contactus/index.cfm#melrose