800 - 1000.
My guess was around 1000 or so. Good crowd, and very enthusiastic. It was a great experience. I was impressed by the number of people that were like-minded!
The Times Free Press estimates around 2000 in Chattanooga. Interestingly, the reader comments about the event are already leaning hard-left. Apparently, the spineless twits taht were too afraid to show up at the Tea Party are now posting caustic remarks behind the curtain of "anonymous user". Wimps!