Looking for a good Dictionary

As far as online dictionaries go, I highly recommend goo辞書 (http://dictionary.goo.ne.jp/). However, being a Japanese dictionary, only some words actually have English translations, if that's what you're looking for. I'm not so sure about physical dictionaries though, since having an online one is both convenient and arguably would contain more information, being digital.

If what you were looking for was a list or repository of kanji, then that's probably not what you're looking for. :P