Power supplies, P360s, lights, and an idiot (me)

[EggZilla]

Hey guys,

Here's a question that I thought maybe someone with a working knowledge of voltages and currents and the like could answer, and possibly keep me from setting my house on fire.

I'm wondering if there's a practical limit to just how many things can be powered by a typical power supply. Specifically, I need to power 2 Perfect 360s (5v), 4 cold cathode tubes (I forget their draw, but they've actually come with molex connectors on them already), two Atari cone buttons (12v, I believe?) and possibly two LEDs (for the coin doors). Wiring nightmares aside, is this more than I can expect my power supply to handle? I think it's either a 300 or 350 watt supply.

And speaking of wiring nightmares, here's a further question: Can I use one "set" of wires (meaning two black, one red, one yellow, all on the same molex connector) to wire both volcano switches (12v) in one two-link daisy chain to the yellow, both P360s (5V) in a second, two-link chain using the red, and then ground them using the two black wires? Or is that just asking for it? I guess the big question here is whether one can daisy-chain actual voltages the same way one daisy-chains grounds.

Any advice would be greatly appreciated. I don't know beans about this electrical stuff.

Cheers,

Eric

[MonitorGuru]

ATARI CONE BUTTONS ARE 2V  (TWO VOLT) ONLY

DO NOT APPLY 12 VOLTS to an Atari cone button or you will blow the LED!


Sorry for all caps but I wanted to prevent a costly mistake.  Yes, you can replace the LED but then it's not original and a pain to do so.