anxiousinfusion :
Thanks, I will check Goodwill and Savers. But because I'm young and inexperienced at life how exactly would one approach a school about that. Phone their IT department? Walk right in and ask?
If you are still in school, try talking directly to the IT guy(s), they might even take an interest in your project. If you still live by your last school of attendance, try the same thing or call them.
Don't know where you live, but calling the school district office or a specific school and getting in touch with the IT dept. might work.
Might try contacting your Internet Service Providers local office, they might have something laying around.
I mentioned the second-hand stores as I was at one about 4 years ago and they had two or three PC's in some interesting cases, and had I been in the market probably could have had them for 2 or 3 dollars.
If you are here in the U.S., yard sales sometimes have them: I have sold two old pc's that way so I am sure there are others getting rid of broken pc's at their yard sales - just have to find the right one.
Another thought; check with a/some local computer repair shops: Preferably locally owned businesses, not Best Buy or Circuit City etc.