Just saw this on hackaday.com. It's a "ATmega fusebit doctor" that sets the fuses to a safe state using HVPP. It claims to do it to a broad range of AVRs.
Should help all the newbies out there that set their fuses in a wrong way.
http://hackaday.com/2010/05/17/m...
http://diy.elektroda.eu/atmega-f...