How's the project going? Love all the ATX conversion info you've amassed. Looks like the color coding on the Mac cables might be the same as is standard for ATX PSU's?
Molex pin extractor/installer set arrived today and can't wait to play with them for real. Pulled one pin out of a harness power connector. I think I'll be pulling them all and re-installing them in the receptacle end of an ATX power extension cable. Can't possibly be that simple though. Indubitably, I'll be buying crimp on female connectors, such is life. Hopefully one way or another will lead to simple use of a PicoPSU in a new MicroTower case build I have in the planning stages or a full-on ATX PSU hookup if not. ATX PSUs have 3.3V to spare for PCI slots on 6360, 6400 and 5400 boards. Gotta spend some time with your soft power circuitry, barely grok it at all as yet.
edit: found a short video