I have this one from NZXT. Its simple, well built and reliable. Its also fairly cheap to. I think I price matched it to $21 when I bought it.
NZXT :: Unique. Unprecendented. Inspired - Sentry Mesh Product Detail
One suggestion I do have though is not to put your cpu related fans on a fan controller. Leave those plugged into the board and control them in the bios, with speedfan or something similar just in case of failure, or in my case young kids who like to push buttons.