Like Icelandic nouns? You'll love Finnish nouns! They appear to have fifteen cases in five different categories. It's the sort of language that I'd like to learn for the sake of it, if I had time to learn things for the sake of it. From my ill-fated attempt to learn Swedish, I think they have noun suffixes too. http://en.wikipedia.org/wiki/Finnish_grammar#Noun_forms
Immersion in a language obviously helps in a huge way. Learning Russian was difficult without a chance to speak it at all - so much so that I decided to give it a miss for the time being. It wasn't so much that it was difficult, more that it didn't seem linked to any context in my life. However, my Greek - which I started at roughly the same time - is coming on leaps and bounds, mainly thanks to the fact that my partner is Greek. I think learning the language has put me in her mother's good books, too. Eimai kalos foititis!
Simon
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