It works it works it works :D
See the power supply thread for the schematic, or complain a little bit and I'll post a link to the power supply thread. I'm too lazy right now; I worked for about 8 hours getting it nice and properly wired (I used #12 copper for the ground, and #16 copper for the rails, and solid #22 hookup wire for the control signals).
There were no remaining glitches under load test, and in the amp it's golden. I'm not sure what kind of sound problems people had; to me it sounds like a million bucks, though admittedly I only hammered it once to check it wouldn't drop out. I'll really beat heck out of it tomorrow, though. 8D
I'll let you know if I see any problems, but given how I tested it, I can't see any that look likely to crop up.
And it's quiet as the grave- even the reverb is quieter than it was, you can just pick up the slight hum over the sound of the fan (and I mean sound, not interference- I checked with my head right in front of the speakers). I'm gonna get some double-takes the next time I trundle this thing out there.
Thanks a million Andrew, not least for putting up with me.