Ah, I see the one amp draws 114. I was gonna say, I don't know man; 200 amps is pretty rediculous. But, 114 is somewhat more reasonable. Definately don't try to power them together on the same line.
Truth be told, you'll never hit the maximum on that. The numbers are maximum, which mean peak power. That can only occur when you have probably a 2 ohm speaker hooked up (what's yours?) on each channel (how many are there, and are you going to bridge them?) and playing a huge bass hit. That's really the only time it will hit anywhere close to its peak power. With a big cap right by the amp, I'm sure you could get away with something like a computer power supply (of ~30 amps) and still get a load of power. When I was testing out this 460 watt amp my brother brought home from somewhere, it had like 40 amp fuses on it. I hooked it up to a 20A power supply I have, no caps, and could crank it up all the way without any issues. I hooked up a meter to measure current, and it only hit about 4A. Granted, the gain controls on the amp are broken, so it wasn't putting out as much as I'm sure it could have, but it was rumbling the house quite nicely on cheap, dual 12" subs.
Anyway, point is you don't need a 200A supply to run that thing. Try just a hefty 12V transformer (maybe a 12-0-12 with the two sides in parallel) into a bridge rectifier with some caps. That can give a lot of power assuming you can find a decent transformer. This is all it takes to make one:
http://sound.westhost.com/p68-f2.gif Just wire the two sides of the transformer up in parallel instead of series like that shows since you don't need +/- 12VDC.
The transformer is the expensive part (well, that and the caps.) You'd need something like.....
http://www.surplussales.com/Transformers/PowerTra.html
That might work; you'd have to look around really.
Actually, this would be better:
http://www.newark.com/NewarkWebCommerce...aSearch/partDetail.jsp?SKU=95B5032&N=0
If you have to buy a supply, something like this would work:
http://www.newark.com/NewarkWebCommerce...caSearch/partDetail.jsp?SKU=89F683&N=0
That would supply a lot of power.
In the end, it's going to be expensive; that's a lot of power. Maybe a car battery would be cheaper?