The Meditation Timer is for Mac OS X only. It has been tested both on the Power PC and the Intel Macs, so it should be OK for your machine.
The timer can be set from 1 to 10 minutes. After Begin is clicked, the timer will count down 15 seconds then 1 strike of a singing bowl will sound to indicate "begin". After the set amount of time has elapsed, 3 strikes will sound to indicate "end".
This program was created for and is dedicated to Virginia Aldrich. Enjoy!