Originally Posted by
SegFault
Clip-on aero bars ($60-$120) that work with your existing drop bars and an aero helmet ($150 or so) plus a good body position will get you most of the aero benefits without the big price tags of dedicated TT bikes.
Public service announcement:
http://www.probikekit.com/display.php?code=A1367 $22 aerobars, only 2 left in stock though (as is everything at PBK).