What are the best books to have for Dungeons and Dragons? besides the 3 core rule books?

ones with more cles and prestige cles, items, equipment. books like Oriental adventures, complete arcane/warrior/divine. those are actually the ones i have (also 3.5 monster manual, DM guide, and players handbook) i just want a list of all the ones you have or want or know that are really good to have, advanced or not. i have also been playing for about 5 years now, and just want to get as much books as i can get.