What the best PC I can build for $1000 not including shipping/handling, the OS, and the monitor

If possible both an AMD and Intel build so I can compare it

ok that makes sense

stil can't find edit , also is their a difference between Ubuntu and Linux

well many sites I have looked at arre back and forth some say linux and other windows 7

Which is better linux or windows 7 mainly gaming wise

for an AM3 socket type

k wat is a good air cooler as an extra $100 not worth for easier liquid cooling

Which case is better the Corsair Obisidian 800D or the CoolerMaster HAF 932

both are full tower cases

so the 125W performs the same as the 140W

also does it OC the same?

any difference between these two CPUs? performance wise

http://www.newegg.com/Product/Product.aspx?Item=N82E16819103727

and

http://www.newegg.com/Product/Product.aspx?Item=N82e16819103692

Both are AMD phenom II X4 but one takes 125W and the other 140W