I have wanted a dog for a little over a year, to help me get out more and to add another loving animal to my happy home. My husband and I have 2 cats, no children yet. We both work full time, but are planning on doing puppy day school and then dog daycare for part of the time we are at work. Eventually, we want to be able to trust our dog at home for maybe a few 8 hour days per week. We would give our dog run of the house with the cats. We have a yard. I worry because I don't want to upset my cats too much or not be able to eventually trust my dog alone with the cats. The reason I chose a sheltie, not just for its beauty and intelligence, but because I thought I could trust the dog if I trained it properly to be gentle with my cats. I just want everyone to get along and eventually like each other. I'm also a little worried because I might not get much choice on my pup since I said I wanted a boy when the litter is born. I guess I could tell the breeder, I want to pick my own pup, but I don't know if that would be okay at this point. I want to make sure I have the right dog for my household. Does anyone have any thoughts? Thanks!