Have to agree with Paddywak, German Shepherds are the best breed in the world.
Apart from the 8 week old demon that is chewing my slipper as I type! Sure I don't need to tell you, but Collies and Springers need loads of exercise, and are not so laid back as Labs. Brittanies are Cockers are also quite 'busy' dogs, Don't forget most of the terrier type breeds (and Spaniels) need coats that will require clipping regularly.
Retrievers are lovely, but again do shed a lot of hair. A Pointer or German Shorthaired Pointer again need exercise but are quite low maintenance.