iPod touch with "Japanese", Anki and daijirin?
I recommend the grammar dictionaries by Seiichi Makino mentioned above. If you plan on taking the JLPT, then Kanzen Master grammar and Unicom listening and reading workbooks are really good. I'd take the rest to a second-hand bookshop and buy a ton of manga and short novels.
I recommend the grammar dictionaries by Seiichi Makino mentioned above. If you plan on taking the JLPT, then Kanzen Master grammar and Unicom listening and reading workbooks are really good. I'd take the rest to a second-hand bookshop and buy a ton of manga and short novels.