Japanese jap dictionary.

maybe this can be considered as an advertisement but i thought it was a good thing to know about this as this is "the gateway to japan".

http://www.declan-software.com/japanese/download_japanese_dictionary.htm

there is a dictionary there with the translation english-japanese of more then 20,000 words and also 3 utilities i found most helpful, they're for you to learn how to read and write the simbols of katakana, hiragana and kanji.
so you are able to see the simbols you have to activate the estern asian support on your pc going to control panel and to regional settings (you need a win xp cd or ime).