Where to invest in Tennessee?

I am a broker in Texas and own rentals in the Houston area, but it has been years since I've come across a really attractive deal. I've heard a lot of good things about Tennessee, but I am not familiar at all with that market. Where should I start looking? Memphis, Knoxville, Chattanooga, are there good deals out there? I'd appreciate any recommendations for agents or property managers as well.

Thanks!