vim is a great tool ;) Haskell is a good idea, and you might want to learn a new language every year (http://pragprog.com/book/tpp/the-pragmatic-programmer htt

vim is a great tool ;) Haskell is a good idea, and you might want to learn a new language every year (http://pragprog.com/book/tpp/the-pragmatic-programmer http://pragprog.com/book/tpp/the-pragmatic-programmer) but also learn about algorithms, complexity, and most of all continue having fun programming!