i am not familiar with knoxville bike shops but nashville has some great ones....if you are still in johnson city it would be quite a haul
check out gran fondo
www.granfondocycles.com . they import tomassini...which is what i ride...awesome italian steel and they will fit you right. they also are a serrota dealer
there is also allante in brentwood...they carry waterford and seven...a friend of mine got a waterford from them and is very happy