We feed our kitteh Nutro. The vet is very happy with his weight, coat of fur, and whatnot.
If there is anything precious or expensive that the kitten might sink it's claws into, move it or keep it safe somehow. When we adopted our stray a couple years ago, Ecco dress shoes went back into the shoebox, put leather messenger bag in a closed closet after work, etc. Keeping a scratching post in most rooms helps with this. Just plop kitteh down by a scratching post and run his front paws on it. They'll figure it out. If you've already got a dog you're probably used to this.
Don't go cheap on kitty litter. Just don't. We use Fresh Step premium or whatever it's called. Can get 40lbs for under $20 at Sam's or Costco. It really cuts down on the smell.