I agree with that watching some Anime can be good for getting some pronounciation down, but i have to disagree about it being a way to learn vocabulary (unless the subs are done professionally, like a Studio Ghibli production). When it comes to watching fan subs, you just can't 100% trust that what is being translated is actually the correct words etc.

Also you have to bear in mind that grammar,vocabulary and overall structure of Japanese used in Anime is very casual and isn't spoken commonly like that in Japan. I can only honestly say the best way of learning the language is classes (with a native Japanese speaker if possible) and also trying to immerse yourself as much as possible in the language.

Also neverhood also made a good point about reading and writing. I find practicing the writing is one of the best ways of learning the Kana.