I have a couple of great dogs, they can be viewed here
http://pickleweed.com/ourpets/beckypuppy.html
She is a Boston Terrier, they are known for not being barkers, but they have tremendous gas
http://pickleweed.com/ourpets/pennypuppy.html
She is the mellow one. Loving to all and Clumsy.
Just had to show them off. Now to answer your questions John.
Not sure what type would be best for me... Only you can decide this one, based on what your lifestyle is. We can't ever go anywhere here in Europe as our dogs can't be handled by anyone but us, they would starve to death. Little one is a biter, big one does what ever little one does.
It will be spending time inside and out, a good bit of space for it outside but remember, Ireland is cold
Just don't get a very short haired breed, Our big dog has short hair and loves the cold but our little dog is very thin skinned and has to sleep under the blankets.
A breed that wont go mad if left on their own for a few hours during the day (I have known a lot to do it...)
It will have somewhere to go that gives it cover though incase it starts to rain and its not inside.
I also have a cat, so a breed that eats cats would also be preferred
Oh yeah, also has to be good with small children
All these last ones are easy to answer, from the moment you get the dog, make sure it is around children and cats, the cat is there first and the dog will learn it's place.
I recommend you take that puppy everywhere with you that you can and let people handle it, especially kids. Also get it plenty of training time in either by you or a professional trainer, that really is the best way. You want the dog to know you are the boss and obey your commands.
If you travel a bit get the dog used to the kennels or you will have a hard time leaving them somewhere as they will tend to get aggressive even with the proper training.
Our dogs obey all our commands, sit, shake, speak all the fun stuff but we never trained them for other people or for out travels without them and so we are limited, but they are our babies and no one to blame but ourselves.
Because your dog will primarily be an outside dog you could probably get any larger dog permitting you have a large yard or plan on talking them to fields so they can run. Some dogs need a lot of exercise, like Shephards, Border Collies etc. Read plenty of books or look at the kennel clubs online, if you don't think the dog will get a lot of exercise then don't get any type of herding or hunting breeds. Some dogs are known to be one owner dogs and though you train them not to be agressive they can get tempermental with age and strike without notice. I had a chow do that once. Make sure you get to see the parents of your puppy, if that dogs shows aggression, it may be an inherited trait. So remember training and knowledge is the key.
Hope this helped you just a little