If you dislike mac and windows you might want to apply to google. It seems that they are giving away their Open Source laptops to the first round of users in hopes of getting feedback on bugs.
I'm not promoting google, but if you are broke, or want to spend your money on food, this might be a good free thing. I like to re-use old computers and never buy them new, but the more open source can push out Apple and Microsoft, the better off the earth will fare.
The applications end Dec 21st, or so says their site right now.