My system works well with the Toslink to mini-Toslink cable set-up. I had a custom length made to fit my needs. There are several companies that will do that for you. If you want to go dirt cheap just get the Toslink cable of choice and slip on one of those little adapters (mini) to one end. I think you can by them for $1 - $2.
iMac Combo Headphone/Optical Out Port Cable
I just picked up a used Apple G5 iMac (2005 model) that has a combination analog/optical digital audio output port. The output on the iMac is a mini plug. I want to use it to digitally connect to a Panasonic receiver and I can use either an optical Toslink and S/DIF RCAs input. I can't find a cable that does what I want. Anybody know how to connect this setup?