Can you please tell the wattage of the server psu's please and price
sure ,
it is some HP DPS-800GBA 850/1000 Watt Power Supply .
they provides up to 850 Watts of 12 volt power on 110 volts or 1000 Watts of 12 volt power on 240 volts.
i use these Power Supply with some gigampz Breakout boards, solded separatly ( 0.12 btc each)
and for the power supply itself , price is 0.12 BTC each too + shipping coast from France . ( 4 units available )