Someone who wants your old computers!
Via Freecycle, I have been in contact with a man called Michael Foulkes (012380 652047) who lives in Eastleigh, Hampshire and refurbishes computers for the needy. He will travel a reasonable distance from there (and has a contact living in Salisbury who could collect for him) for machines and can wipe them etc if needed. He will take my old 700Hz machines so we are talking pretty old stuff here!:)
If you have got any old kit and are fairly near him, give him a ring.