What type of bicycle should I purchase?

Hello all. I am willing to invest anywhere from 1300 to 1500 on a good bike. I will mainly be using it for recreational riding for long distances. 20 mile rides at least. Purely street. Not racing either. Can someone please give some suggestions as to what I should be looking for in a bike that fits those demands? I am 6'2 at 175 lbs. So I am assuming I will need an extra large? Web links will be very helpful. Brand suggestion will also. Your help is appreciated. Thank you.