Laptop donations?

I'd like to donate my 4 year old Apple iBook G4 to a non-profit organizaton in Ontario. Does anyone know of a good one? I'd like to receive a tax credit if possible. Thanks in advance.

http://www.littlegeeks.org/

But they haven't gotten back to me concerning my ancient Celeron 700MHz, or my 2GHz Athlon 2400+

Cool, Andy Walker runs that program. I'll see about donating to them.