What are your thoughts on using like an AT powersupply (since they are pretty cheap to find.. have a manual switch and turn on without any fancy connections) to power up the drives.. and then using the ATX powersupply to power the board? Might be able to run fanless since it has little draw.
Well, i was beginning to take that direction, only I would be happier with a less bulcky solution, somthing like an industrial switched power supply, (only for 12V, which seems to draw the most power). This would be fanless of coarse.
Turning this thing on would not be the problem, since I'll need a relay anyhow to power a pump for watercooling.
I'll be starting another thread too, since i'm a bit puzzeld about the power requirements of a complete system, seems to exist different figures on the web concerning this subject.