Good for you for getting a dog. I however wouldn't recommend getting a border collie or a NSDTR. Yes borders are smart and easy to train but they are very active dogs that need a lot of time devoted to them, the same goes for the duck tolliers. Also both breeds have a tendency to be soft and don't take to corrections very well.

Actually for a first dog it's most likley best to stay away from any and all herding breeds especially if you would only be able to take one walk a day.

I would suggest going for something small or a mix breed, my first dog was a mixed breed and he's an awesome dog.