How much do male Rottweiler puppies cost?

It depends on the quality of the dog, and it's parents and if they have been medically tested and are champions. It can range from 300-3000 dollars.
References :

Depends, on the breeder, the Humane Society, pet store. It all depends. On average, dogs from breeders, or pet stores can cost anywhere from $300-$900.
References :

forget the puppy.
Get an adult from a Shelter.

You would know if you had dog ownership experience.

Adults are less easy to mess up by a newbie and they're less expensive.

I hope you're intending to be spending lots of off-leash exercise time with this dog. Right?
References :

From a good breeder, expect to pay at least $1000.

http://www.amrottclub.org
References :

A puppy from a quality breeder will cost you at least $1500, if not more. You can begin your search for registered breeders here: http://www.amrottclub.org/

You can also look to rescue - Rottweilers are popular in shelters: http://www.petfinder.com/search/search.cgi?pet.Animal=&pet.Breed=rottweiler&pet.Age=&pet.Size=&pet.Sex=&location=houston%2C+tx
References :

it depends on the quality of the dog but i suggest you go to a RESponSIBLE BREEDER! a reputable breeder.
or you could always try http://www.petfinder.com
References :

Depends.

From a rescue: 50-300$.
From a shelter: 40-300$.
From a breeder: 1000$+.

http://www.amrottclub.org/
http://www.petfinder.com/
http://www.netpets.com/dogs/dogclub/breeds/dogrott.html
References :