I am a Bianchi fan
http://www.bianchiusa.com/09-bicycle...b-leisure.html
Most important part is a stiff frame so you dont waste to much power on flex. Make sure its long enough, so you dont limit your lungcapacity by bending your body.
if you arent in shape, make sure you get a wide bike saddle. You can always buy a slim one later. Your butt will thank you
