NEW Corsair Hydro H100i Extreme Performance Liquid Cooler
Corsair Force GT 240GB r: 555mb/s w: 525mb/s SSD
Integrated 8 Channel HD Audio
24x Dual Layer DVD +/- Writer
Windows 8 Pro 64BIT
3x [3D] LG D2343P-BN 23" Cinema 3D 1920x1080 IPS LED
Are you planning on doing any overclocking? If so then stick with the sandy bridge you have now. If not I would go to a 1155 socket and get a i7 3770k or even a i5 3570k. That's a hell of a rig that you're buying can I ask what your main use for it is going to be?
And also, out of experience with Windows 8, IMO and I'm sure others will agree, its not very good. IMO its not a desktop designed OS and is more designed around the idea of Touchscreen and Mobile devices. If you're using it for gaming I would recommend going with Windows 7. I went from Win7 Ultimate to Win8 and literally in about 30 mins, I went right back to Win7.