Autozone is great for some stuff, plus I go to
www.autozone.com to look my stuff up first. Big thing is to watch out for the name brands. Their rebuilt stuff is ok, and they have lifetime warranty. My calipers and ps pump came from them, and have had calipers for a few other cars that were ok too. The Wells Ign stuff seems ok, the brake rotors and drums I got work ok, at least they were Taiwan not China made!
Good prices on Motorcraft plugs and oil filters etc..
They have plenty of cheapo parts too, plus not too many usefull employees. At least the Natick MA one had a nice Hottie that actually had some knowledge of parts
pretty rare though.
Best advice, use the website to find your parts, U can do the same for NAPA too,
www.napaonline.com then print out the results and then you actually get what you want!!