Ok I checked whats under the little heaksink and its the ram's, so Im wondering why the do they get so hot ?

SophaerLam

Because they are processing loads of information and using allot of power under full load to do it.

You can use this one here:

http://extreme.outervision.com/psucalculator.jsp

Or, use the one on Cooler Master's website here:

http://www.coolermaster.com/support/psu_calculator.php

The new AMD cards are out in a few weeks, so I'd see what they have to compete against the GTX 460 before making any decisions, especially since this series will be the second series with DX11 support which means it will probably more than likely render it more efficiently.

If you want a GTX 460, by all means go get it...but you may regret buying it so close to AMD's launch when the first card they are supposed to launch is going to be the direct competitor to the 460.