[Beowulf] power usage, Intel 5160 vs. AMD 2216

[Mark Hahn]

> (you could cobble one together cheaper.. a high quality charger is probably 
> $50-100, good quality battery is around $20, a high quality inverter is $200 
> or so, and then you'd need some sort of transfer switch.

wouldn't it be nice to find a PSU which could simply take a 12V input?
battery->inverter->switchingPS->DCelectronics is kind of gross...