Best breed for our lifestyle?

Hey, we've had pets for quite a few years now and we've finally managed to convince our parents to consider getting a dog. We've been doing a lot of research but can't settle on a breed yet, so we need a little help. We're not too fussed about size, but I don't think we could have anything too large. We have a medium/large sized garden, and a medium sized house. Our garden is completely secured (we know because our neighbours have 7 dogs, sized between a weimeraner and a chihuahua puppy, and they don't get in). As far as children, there are three teenage daughters. We all have pet experience, including dogs, cats and horses.We currently own a giant French Lop rabbit. She's harmless and doesn't scare easily, and lives in a secured hutch outside. If neccesary we can take measures to ensure that the dog is kept away, but we would prefer a dog that could get on with her. We live on a private road, meaning we get very little footfall or traffic, and the village is very safe and quiet. We have a wood and park at the end of our road, where we can take regular walks, and although we will not be able to take very long walks each day, we would be willing to take the dog on long walks on the weekend and holidays. The dog will be allowed access to the garden, and there will be somebody with it either out and about or inside pretty much all day, perhaps with the exceptions of a few times a week when we are driven to school. Obviously, we plan to train the dog in general obedience, and perhaps some tricks if the dog requires extra stimulation. Sorry for the essay, but we want you to have a thorough idea of our lifestyle. Thankyou!.