I am thinking seriously about getting a dog. I live alone and so think it would be nice to have a little four-legged friend around. However, I have the following concerns. First, I live in a apt. so space is an issue. Secondly, this fall I will hopefully be starting law school which means there will be times when the dog will have to be left alone for several hours at a stretch. If I did in fact get a dog, it would be through the SPCA or other shelter and breed or mutt does not matter. Any suggestions/advice on breeds or types?