I've gotta recommend the Brittany Spaniels.
First, they love to be outdoors and hunt. Untrained they'll wander about until their nose picks up something then home in on it. A well trained one is a delight to watch.
Most of the ones I've seen have had good tempermants and were really good in family homes. They're big enough not to trip over and small enough not to knock you down. These are dogs that love to be active but can also handle some quiet time as long as they've been allowed outdoors for an hour or so.
BillCA in CA (Unfortunately)