JD is a great guitar player. Apparently Kenny Vaughan is playing an RS Guitarworks Tele lately, too, that Silver Sparkle Tele that Kenny has been playing lately on the Marty Stuart show is made by RS Guitarworks
There's no shortage of great guitarists in Nashville, including of course Steve Wariner, Vince Gill & Brent Mason...
As far as Lower Broadway goes, check out the Silver Threads sometime, with the Legendary Rich Gilbert on guitar (Joe Fick plays with them alot too). Also Rick Wright plays on Lower Broadway sometimes, too, and Rod Riley is another super great guitar player down there, too
There's a singer down there on Lower Broadway named Sarah Gayle Meech, she's someone to really keep an eye on, an incredible Country voice, she's got a little bit of a Loretta Lynn thing she can do with her voice
I love Nashville. Hope to live there someday