What is the best type of electronic dictionary to learn chinese, japanese, french and spanish?

i am a beginer in all these languages, i'm ok at reading but when i come across a new word i get stumped, and i don't want to go but a new dictionary each year because of updates to the language...so any help would be highly appreciated. thanks.What is the best type of electronic dictionary to learn chinese, japanese, french and spanish?
maybe an good online dictionary can help u. it's free and professional.it is very useful for learning chinese and next year it will add Janpanese. http://www.nciku.com .hope it can help u.