wanna start collecting one piece then start with the current line up which is Portrait of pirates Strong edition, good details and nicely done. close to the actual drawing of anime.
can go to
http://www.amiami.jp/shop?set=english <-- amiami - they have the best discounts
http://www.1999.co.jp/eng/ <-- hobby search - discount not as much as amiami but have more alternative to pay and have cheaper shipping options
http://www.hlj.com/ <-- hobby link japan - also another place.. but very little discounts, but more likely to finish stock slower than amiami or hobby search
so right now u wanna collect, u can still order strong world usopp, robin, franky, chopper version2, sanji, brook, zoro version2, and nami version2, i think luffy and chopper version 1 still available. wanna buy u go buy now. lolz
the older line up is portrait of pirates NEO, which has NEO vol 1 - 7, each vol having 2 or 3 figures per wave. but currently only neo 7 have stock. which is tashigi and smoker, cuz of reissue. there's also NEO DX, which means Neo Deluxe, is specially for the shichibukai or marine generals, so far aokiji, mihawk, crocodile and kuma still in stock. the rest all sold out! unless u wanna pay more ex and buy in ebay
each portrait of pirates ( POP ) cost about 180+ some 200+ chopper usually 80+ cuz small size, the bigger sized ones like franky brook, kuma.. usually cost about 200-250++
other than that.. got alot of other smaller figures la.. but those details look good but not as detailed. from bandai, banpresto.
want more details on all the figures u can go here
http://onepiece.wikia.com/wiki/One_Piece_Merchandisethey have written about all the past current and future figures of one piece