Would appreciate your advice and help on this and I apolgise if I am repeating previous threads. Can't decide whichcomputer to buy and will only fork out for the more expensive one if its worth it to run FSX better.First one coming in at £1399 (chillblast) - Is this worth pushing the boat out for. Want to run NGX and concorde X comfortably.Processor: Intel Core i7 2600K Processor overclocked to 4.5GHzCooler: Corsair A70 CPU CoolerMotherboard: Asus P8Z68 Pro MotherboardVideo Card: NVIDIA GeForce GTX 580 1.5GB Video CardCase: Xigmatek Elysium CaseMemory: 8GB PC3-12800 MemoryOptical: Samsung Blu Ray / DVD Combi DrivePrimary Drive: 120GB Corsair Force 3 6Gb/s SATA III SSDSecondary Drive 1000GB SATA 7200rpm Hard Disk (FSX)PSU: 750 watt Corsair PSUSound: Onboard High Definition AudioOS: Windows 7 Home Premium 64bit OEM Or this one i've ben quoted £1000 which is more appealing. Is it worth me paying £399 more for the above? Cooler Master Elite 430 Black ATX CaseIntel Core i5 2500K Processor overclocked to 4.5GHzCorsair A70 CPU CoolerAsus P8Z68-V LE MotherboardGeForce GTX 570 Graphics Card16GB PC3-10666 DDR3 Memory24x Sony DVD-RW Drive2 X1000GB SATA 7200rpm Hard Disk600watt Corsair PSUOnboard High Definition AudioWindows 7 Home Premium 64bit OEMThanks Evan

If you could get the top one with Intel Core i5 2500K CPU that would be better. The PSU's on both systems are weak for major overclocking and gaming. FSX is better with a sound card. Onboard sound does not work well in all cases. The 2nd one will work okay with FSX, the NGX and Concorde but would definitely recommend a better PSU and sound card.Best regards,Jim

Thanks for your info. would the Corsair TX 750W PSU or Corsair TX 850W PSU be a better idea only £30 more.Leaning towards the second machine following your advice esp if it will run NGX an extra £399 seems a lot for an i7. Is there a big difference betweeen the570 and 580? and are the hard drives ok on the lower spec?THanks for your help with this. Evan

I can definitely recommend the Corsair TX 750W PSU. I use it for some time now and everything is all right.

Thank will probably go for the latter spec and upgrade the PSU to the 750W. Thanks for the advice.