extreme gaming/video pc ready for all the latest software and upgradable ?

For sale is my extreme gaming pc ready for all the latest games. Included in this windows 7 pc that is fully up to date with security, office and video software is the following handpicked components for the best possible performance. Intel quad core q6600 cpu capable of over clocking due to cooling installed. 4gb DDR2 Kingston memory upgradable to 16gb Massive 2 gb dedicated video ram 2 x 1gb Geforce gt6600 graphics cards in sli configuration with bridge installed for best gaming performance with 4 dvi outputs with adapters for hdmi and vga output to 4 separate screens 500 GB 7200 rpm sata hard disk Asrock Penryn1600SLI-110dB motherboard very upgradable for future tech Networking is via a gigabyte lan port capable of handling all internet speeds without slowdown Connectivity is available thru external sockets as follows: - 9 usb 2.0,2 x fire wire, sata, all memory card formats and other normal connections. Audio connection is via a trust 7.1 surround sound capable card with optical, digital and analogue outputs for full compatibility with any system. 2 x DVDRW for all your DVD needs. All of these components are installed and working perfectly but all are upgradable as a pc engineer this system is built and tweaked for best performance but if you have something else you would like installed like blu-ray player then this can be arranged for a nominal cost. If required I can deliver and install this system in your home. Any questions please ask John