Don't know if this has been posted already, but this is a really useful piece of software!! Its a dictionary, that you can use in tons of different ways - looking up vocabulary and kana, similar words, transient / intransient variables, Kanji components, make lists of what you want to study, i think it has an export option too. Its really very good!

Heres the link:
http://www.tagaini.net/

have fun

Yeah Tagaino Jisho is cool. I've been using it alot recently. Some people wouldn't like it because it uses EDICT or something, but I don't really mind. It's very helpful for a beginner like myself.

Very nice. But it's big.

I like the colored stroke order animation.

If it could use a Monolingual dict, then I think it would be much better =D Just like if rikaichan could use a monolingual it would be way more awesome than it already is =D