With thanks to the UQ-JAPSOC, The Japanese Page is a great stopover for anyone from the beginning student right through to those who wish to learn what "sei ryou in ryou sui" means in Japanese! (yes, there is an easier word for it!).
Noryoku UP sounds like a particular series of books from Unicom, and even seems useful. A great web site for beginners level Japanese, though not to a very advanced level, but it presents it's stuff in a pretty clear consice manner, using colours to match words.
One of the most important resources one needs when studying any language is a good dictionary. It's even important to have access to these materials on the computer. Jim Breen of Monash university has written a dictionary (yes, that's right!) that manages to include most every possible word you could ever need, and thousands you won't. As well as an amazingly comprehensive general-use dictionary there are specialised-language terms for areas including Aviation, Finance, Geology, Law, Life Sciences, Linguistics, Marketing and Stellar Terminology, and if that weren't enough then another amazing list of Proper Nouns for both people and places.
What's the best part? It's completely free to use both live on the internet and to download to your own computer, Macintosh, Linux and Windows versions available.
Jim Breen's WWWJDIC
Wondering what to do once you finish your degree? Want to live and work in Japan? Have a look at the JET Programme - run by the Japanese Government. Participants spend one, two, or three years in Japan as either a Coordinator for International Relations, an Assistant Language Teacher, or a Sports Education Advisor. Educational qualifications are not that stringent - you need a Bachelor's degree.... in anything.
A fantastic source of information about Australia in Japanese. Have a look at Australia-Japan.