Best Japanese education software

I tried a few searches of the forum and was surprised not to find any threads about this. In short, I'm wondering what the recommend software (ideally including but not limited to freeware) for assistance in learning Japanese is. Software from all levels is welcome. Many thanks.

I have Dr Blair's Japanese in No Time cd's and they've helped me remember alot of words because of the way he uses to remember the japanese words and how to pronounce them. I also have 2 books called Everyday Japanese and Conversation in 7 days, their helpful books as well because they don't only show you the kanji but they also show you the romanji and the english meaning for the word =).