although i have owned several breeds, i am currently best "friendless"
whatever breed, i would suggest a rescue or shelter dog.
also, although i didnt like small dogs before, i have known several pairs that had great dispositions (sp?) due to by my guess by being paired. i lived next door to a gal that had a pair of westies that changed my perception of small dogs for the better. nothing worse than the spoiled little yippy brat!
contrary to popular belief, many large dogs are very content in a house, but do require walking and exercise (same as any dog). i lived with an irish wolfhound (the largest breed) for a while, and he was very happy to be inside most of the time. he could however clear a coffee table with one sweep of the tail! im 5'11", and his head was taller than me standing.
you would be dumbfounded by the number of dogs that are "put down" every week at the shelters.