This thread is getting crazy. Do you realize the aero bars you are looking at cost as much as the frame? Then you'll end up with a tri specific setup that's not good for road riding or perhaps training depending on where you live and the roads you ride? Most people doing tri's for the first time take their roade bike, add clip on bars, and just do it. If they like it, they invest more. The way you are proceeding, you'll haver lots of money in a bike that's not good at anything.
IMO, your best bet is set up your road bike for clip on aero bars. Then if you like tri's, buy a used tri bike that fits you. You'll have two bikes - one for the road and a tri specific one for about the same money.