You'd be doing your car and you a diservice with Radial TA's....those tires suck.
I'm guessing you'll only be driving it in the summer and fall and spring, and sometimes in the rain.
Check out survey results from Tire Rack.
http://www.tirerack.com/tires/survey...ireSearch=true
http://www.tirerack.com/tires/survey....jsp?type=HPAS
http://www.tirerack.com/tires/survey...y.jsp?type=UHP
I would say 245/50/16 would work well.