Welcome to HF, Dave. I'm in Nashville too. And yes, we do have semi-regular dinners, hangs, and gatherings here. In fact, I'm leading two hikes for the Nashville Backpacker Meetup.com group, one in January and one in February. Some will hang, some will tent, and some will use a shelter. If you are interested, they are at Montgomery Bell State Park and Long Hunter State Park. And in February every year I organize a hike/dinner/presentation, which began for friends at WhiteBlaze.net and now includes HF folk too.
Anyway, the water's fine, so jump right in! It'll be good to have you join us.
I'm actually signed up for the Montgomery Bell hike. I may be going out there on that Friday with Bill H. I'm on a few of the other meetup groups here in Nashville also. I do a lot of kayaking, which is what introduced me to hammocks.