Will repair MacBooks for food, but for the love of god don't shred them. Just give them out at high schools or college grads. They can learn a thing or two & save BUX in the process.
There are also a number of charitable organizations trying to bring computation into underserved international communities (eg. http://www.reneal.org/). Please consider donating used hardware; it can have a tremendous impact on communities whose schools have (at best!) a single computer for hundreds of students.
