Thanks for the replies.
I have not bought the gfx card yet. So the GTX is not that much better than the GT? The Tsunami Silver case comes with a 430w power supply so looks like I will have to buy a new PSU for it. Actually if it comes to that, I might buy the Thermaltake XaserV Gaming Tower instead and buy a PSU for that.
BTW, If the voltage is insufficient what happens?
That's an awesome PSU btw, I have to say I looked at all the cables off the back and though what the **** are they all for?
Asus A8N SLI Deluxe // AMD64 X2 4400+ Toledo // Antec True Power 2.0 550w // Tt Tsunami Case (Silver) // 2GB Nanya DDR400 // Leadtek Geforce 7900GTX 512mb // X2 WD 320GB SATA HDD // Pioneer DVR111D // Genuine Windows Vista Home Premium //