TopCoder Alternatives

I''m sure most of you are familiar with TopCoder (if not TopCoder.com is a site where you can compete in codeing - you can even win cash prizes if you good; and faaaaaast ). Anyway, I''ve been trying TopCoder for some time and it works great (although I really don''t like their interface). I''ve been wondering whether there exists alternatives to TopCoder? Do you know some sites out there where you can test your coding abilities? -+-+-+-+-+-+-+-+-+-+-+-+-+-+- Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction.