I'm trying to help out the boss who is due to buy a new gaming box. He sticks to a strick rule of buying one top end machine every three or so years and leaving it unchanged or the meantime. Thus it is completely overspec for current requirements. No overclocking intended. The fixed requirements are: Quad-core CPU: QX6850 Two top end graphics cards 4GB Memory Vista Ultimate 64Bit Gaming soundcard Wireless networking Drive space not too important - really gaming only. Case required but monitor, keyboard etc are already there. PhysX card only if we have a free PCI slot and cash. So I'm looking at either a Crossfire setupwith 2x1Gb HD2900 on x38 and DDR2 or it's 680i and 2x 8800 GTX/Ultra. Hoping to do Raid 0 on 150Gb Raptors. Have to bring it in at <£2500 inc vat. Anyone fancy suggesting a spec?