What are the power requirements for each of the following components?

Question

AMD Athalon X2 4200+
Corsair 1 GB MatchedPair DDR400 XMS3200 CMX512-3200LLPT
BFG nVidia GeForce 6800 GT OC PCI-e
MSI K8N Platinum

Answer 1

Can't tell individually, but looks like that machine will need a lot of juice. When in doubt just go for the bigger power supply, like that if you later decide to add something else, you won't need to buy another one.