Yeah gt some stop squeel (I think thats the name) but let them run for a couple miles and properly seat and avoid hard braking situations as much as possible for the fist 2-300 miles or so.
Pretty common really.
As for the $100 spark plugs.....:lmfao: if you can't figure out where to find your spark plugs in your car then you need to go to a remedial mechanics class and learn that they are at the end of the plug wires in the valve cover...pretty basic location really....maybe before asking you should open the hood and look first

BTW $100 for plugs??? man I got some I would have let you have for a steal at $50 plus shipping :lmfao: