Nashville does not have as many vape stores as many cities do but there are a few here and the surrounding cities also have stores. Vulcan Vape was the first B&M I visited and they were great--they got me started in June 2013, lots of great name brand liquid and support. Vol Vapor has since opened here and it is a pretty good store--nice people and several good lines of liquid. Nashville Vapor is probably the one with the most longevity and they carry some higher end equipment. They have recently opened two more stores right outside of Nashville. Sapphire Vapor is located in the Brentwood, Cool Springs area, they carry a lot of starter kits and I am not so fond of their liquid.
There may be a few I have left off, but this is a start for you.
There is usually a vape meet at each month and many of the vendors come and display. You might want to check out the Middle TN Vapers FB page and you can get information there for the meets, and meet some of the vendors and local vapers.
Nashville is a great place to live--Welcome!!