Sufficient powersupply?

[Skarphol]

Hi!

I am about to crumble under the strain of waiting for BOB and give in to the urge to upgrade my system and then upgrade again some 6 months or so after BOB has been released. Anyway, as this is a thing that has to be spilt over several paychecks, I've thought of starting with cabinet, powersupply and watercooling. The question is: How much power do I need?

The PC is located in our bedroom, so noise-reduction is a big factor here.

I've found a powersupply from Corsair called CMPSU-450VXEU with 450W wich everyone says is so silent its eerie. But will it be enough? Are there other, more powerful supplies anyone can recomend that has a low noiselevel?

My system will never be along the absolute top models, hence my grapics card will be somewhere on the 'upper mid range' if it is something called that.

Thanks in advance!

Skarphol