Official site:http://www.j-onepiece.com/
Information about the anime:http://www.wikipedia.org

A boy named Monkey D. Luffy, inspired by his childhood hero "Red-Haired" Shanks, sets out on a journey to find the legendary One Piece, to become the new Pirate King. To accomplish this, he must reach the end of the most deadly and dangerous ocean: The Grand Line.
Luffy captains the Straw Hat Pirates first through the sea of East Blue and then through the Grand Line. He follows the path of the deceased Pirate King, Gold Roger, from island to island on his way to the great treasure One Piece. On his way his crew grows to have a swordsman, a navigator, a sniper, a cook, a doctor, an archaeologist, a shipwright, and a musician.

Episodes 1-150:http://www.megaupload.com/?d=Y89E84SG
Episodes 150-332:http://rapidshare.com/files/199244526/_AE_Eplist_Onepiece_200-332.txt.html