I vaguely remember your other thread, but have you tried to take one peripheral out at a time and try to diagnose that way? From a service guys perspective, there may be an out of spec component on one of those boards, taxing your power supply.
You're not blowing fuses in the power supply, are you? That could indicate a bad cap or diode somewhere.
And when you say: "1gb system"... what do you mean? What is that?
If this is entirely just a hardware issue, first thing I'd look into is the VT and that Flyer card. BUT... could there be a conflict or incompatibility Kickstart wise there? What does your user-startup and startup-sequence files look like? Is a patch missing? Do you have the latest libs (040/060) installed on your HD? Is the OS partition okay and recognised?
Does the system boot with a bunch of the cards removed?