Anyone know a UK charity that can use surplus PC's?

We recently upgraded in the office and I thought our village school would leap at the chance of having them - which they would, unfortunately the Council that controls the school has a mega spec. for what they are prepared to accept, and we don't meet it.
What are those juniors doing, hacking, video editing porn films, programming Empeg III? they can't possibly need better than I'm offering!
So if any charity wants 4 pc's complete with monitors etc. which were working perfectly well in my office 'till 2 weeka ago....