Old PC on the fritz, looking to build FSX worthy PC

Its been a long time since I uninstalled my flight simulator games/addons, recently I caught the bug again from reading some threads here and really feel I want a system that can run FSX.
My old pc also seems to be dying so I am in the process of deciding to build a new one with the intent of running FSX.
I have drawn up a spec list below based on posts in the sticky above but I want to make sure it is all ok before I go ahead.
Ok I have edited the spec list based on suggestions,
Instead of a 920 D0 I put a 930 D0.
Changed graphics card to another 285 that was actually in stock.
Also put up that I am considering 5850/5870.
Changed heatsink from Thermalright Ultra 120 eXtreme to Thermalright Venemous X due to it being superior.
Added thermal 1300 or 1600 RPM fan for heat sink.
Added WD Velociraptor 300GB (If I have enough money).
Changed PSU from Corsair TX-750 to Corsair HX-650.
Changed Case to Coller Master Haf RC-932.
Motherboard: Asus P6T Deluxe V2
http://www.lambda-tek.com/componentshop ... ID=1687507
CPU: Intel Core I7 930 D0
http://www.scan.co.uk/Product.aspx?WebP ... ce=froogle
Graphics Card: XFX GTX 285 Black Edition
http://www.amazon.co.uk/XFX-PCI-E-Graph ... 015&sr=8-1
OR
A 5850/5870 (undecided)
RAM: Corsair Dominator GT (3x2GB) 7-7-7-20
http://www.lambda-tek.com/componentshop ... ID=1828288
Heat Sink: Thermalright Venomous X
http://www.scan.co.uk/Product.aspx?WebP ... ce=froogle
Heat Sink Fan: Thermalright 1300 or 1600 RPM
http://www.scan.co.uk/Product.aspx?WebP ... ce=froogle
Hard Drive: 500 GB Western Digital caviar Black
http://www.scan.co.uk/Product.aspx?WebP ... ce=froogle
Or possibly this aswell:
Hard Drive: Western Digital Velociraptor 300 GB
http://www.lambda-tek.com/componentshop ... ID=B136265
PSU: Corsair HX-650
http://www.cclonline.com/product-info.a ... tid=frooct
OS: Microsoft Windows 7 64 Bit
http://www.scan.co.uk/Products/Windows- ... it-(Single)-OEM
Case: Cooler Maseter Haf Rc-932
http://www.amazon.co.uk/Cooler-Master-H ... 669&sr=8-1
Optical drive will most likely be from my current machine.
Im pretty sure that is an ok system?
Any help is much appreciated and thankyou in advance.
My old pc also seems to be dying so I am in the process of deciding to build a new one with the intent of running FSX.
I have drawn up a spec list below based on posts in the sticky above but I want to make sure it is all ok before I go ahead.
Ok I have edited the spec list based on suggestions,
Instead of a 920 D0 I put a 930 D0.
Changed graphics card to another 285 that was actually in stock.
Also put up that I am considering 5850/5870.
Changed heatsink from Thermalright Ultra 120 eXtreme to Thermalright Venemous X due to it being superior.
Added thermal 1300 or 1600 RPM fan for heat sink.
Added WD Velociraptor 300GB (If I have enough money).
Changed PSU from Corsair TX-750 to Corsair HX-650.
Changed Case to Coller Master Haf RC-932.
Motherboard: Asus P6T Deluxe V2
http://www.lambda-tek.com/componentshop ... ID=1687507
CPU: Intel Core I7 930 D0
http://www.scan.co.uk/Product.aspx?WebP ... ce=froogle
Graphics Card: XFX GTX 285 Black Edition
http://www.amazon.co.uk/XFX-PCI-E-Graph ... 015&sr=8-1
OR
A 5850/5870 (undecided)
RAM: Corsair Dominator GT (3x2GB) 7-7-7-20
http://www.lambda-tek.com/componentshop ... ID=1828288
Heat Sink: Thermalright Venomous X
http://www.scan.co.uk/Product.aspx?WebP ... ce=froogle
Heat Sink Fan: Thermalright 1300 or 1600 RPM
http://www.scan.co.uk/Product.aspx?WebP ... ce=froogle
Hard Drive: 500 GB Western Digital caviar Black
http://www.scan.co.uk/Product.aspx?WebP ... ce=froogle
Or possibly this aswell:
Hard Drive: Western Digital Velociraptor 300 GB
http://www.lambda-tek.com/componentshop ... ID=B136265
PSU: Corsair HX-650
http://www.cclonline.com/product-info.a ... tid=frooct
OS: Microsoft Windows 7 64 Bit
http://www.scan.co.uk/Products/Windows- ... it-(Single)-OEM
Case: Cooler Maseter Haf Rc-932
http://www.amazon.co.uk/Cooler-Master-H ... 669&sr=8-1
Optical drive will most likely be from my current machine.
Im pretty sure that is an ok system?
Any help is much appreciated and thankyou in advance.