Plumbing Question - Running Lines From Attic

I want to add a utility sink in a room downstairs in a 2 story home. There isn't another water line in any wall currently of that room. I assume I'll have to drop my hot water line from the water heater in attic and run through joists to find my location. Can I do the same for the cold water line or is there an easier path? My drain line is a bitch too but I've only got one option so I'll deal with it.

Any plumbers you'd recommend in BR?