Evening sirs, Just bought myself a XFX 7950 3GB to replace my absolutely ancient AMD 4870 512MB. Upon install I realised I need a 6-pin to 8-pin PCI-E power cable. Also, the GPU doesn't sit well in my case. The card is a little heavy and the clasps on the case don't fit the metal-bit-on-the-GPU-where-the-DVI-port-lives (hows that for a bit of terminology, eh?), which is putting a bit of pressure on the PCI-E slot. XFX manual recommends using a retaining screw to keep the card in place. I have no idea if my case came with any, they're long gone if it did. So, two things: Can I get a retaining screw for my three year old Cooler Master case? A quick Google search showed nothing, other than a £10 "leg" to stick under the GPU! Or is it time to get a new case? (The last thing I pulled out of the case was a rotting mouse the cat brought in and left to crawl off and die. Case has been bleached, but a new case isn't the end of the world!) Before I buy a power cable, will my three year old 650W (the minimum for the GPU) actually be good enough? I heard PSUs become less efficient over the years, but I really have no idea. Thanks, sirs!