As a fellow dog owner my advice is dont do it. They require more attention then a girlfriend or a child and you can never sleep out. If you go out and have a few drinks you have to make it home to make sure you let the dog out or have someone do it for you. If the dog gets bored he will trash your house. It will take a while to house train him. Also living in a condo you cant just let him out. You will have to take him down for a washroom break 3-4 times a night unless you set up something on a balcony.

Little dogs also tend to have a more high tempo temperment. I have a 130 pnd Cane Corso (Italian Mastiff). He is a great dog. Never jumps on people, not a hyper dog at all.

I love my dog but I will prob not get another. I want to go south for a week and finding someone to watch my dog was harder then finding someone to watch my kids.

Just my 2 cents