(newbie here --wave--)
I have a sheltie along with our new yorkie. Now my sheltie is older, he is 9, and is smaller for his breed, less than 20 pounds, but I still have to watch him not to play too rough. When they both play fetch Jasper (sheltie) will plow over Satchmo (yorkie) to get to the ball first.
Jasper has TONS of energy still and he sheds sheds sheds (I do not have dust bunnies, I have dust dinosaurs and they have to be caught and herded to the garbage daily). I think it would be easier to have the yorkie first and sheltie second, simply because Jasper is so very eager to please, but we are all dealing well here. He didn't like the new baby at first but he was NEVER selfish - he shared toys, water, food and crate without being nasty - "treats" were his only cutoff (the puppy was NOT getting his ice cube - Jasper loves ice)
The below write up is RIGHT on the money if compared to my guy. He is very vocal (if you aren't used to it, it can be annoying) and he is busy herding all the time. Jasper is no stroller dog, but he travels well and thinks that anyone who can throw a tennis ball is his bff.
Shetland Sheepdog - Wikipedia, the free encyclopedia
Good Luck with Prince and in finding a manly dog for your spouse!
a sheltie should not shed unless it gets wet. my grandmother breeds shelties and i have lived with them my whole life until i got my yorkie i think a sheltie would be a great idea but they still need exercise, a fair bit. the good thing with a shelties is you can get it as a pup and it will learn to heard your babies and will always be careful with them (what good is a herding dog if it kills the lambs) shelties wear made to have a very soft mouth so it would be a good match another dog you might think on is a Boston terrier or a pug most men find them manly and they are small enough to not be a problem however if you are looking for a larger dog you will have to get a puppy to make sure it is gentle with your dogs