I did the first annual Unadilla GNCC last september on my yz250. It was a great time and a really cool place. The second one ever is this september, I believe the 23,24,25th. All you need is to be an AMA member and anyone can race it. Last year at Unadilla was the biggest GNCC event ever, and tv crews are there, all the factory teams are there, tons of vendors, etc. Id recommend it to everybody to go, even if only to watch. Last year the quads raced on saturday and bikes on sunday so I'd assume it will be the same this year. Give it a shot, it's definately worth it!