Data help me my machine how much power the right W?

Data help me my machine how much power the W right?
CPU QX6800
motherboard ASUS P5N-E SLI
GEIL 800 2G memory
a hard look what brand of 160G La
Ai Ersha card 8600GT
a ASUS LightScribe burning with
CPU heat sink Tt Bigwater 735 (CL-W0075)

my host how much power the right?

250w be enough.200