NEW BUDGET SYSTEM BUILD GAMING PC

Hello I am going to build my first computer and i'm going to try to keep it under 500$ for now, here is my build. This computer will primarily be playing games like far cry 2. what operating system should i use i was thinking about windows vista home premium oem so that way i could keep in in budget or should i go with windows 7 beta? please give suggestions i wont be xfire ing or overclocking. and my last question is this a good build for the price?

Thank you all


Foxconn A7GM-S 2.0 $70

Motherboard- http://www.newegg.com/Product/Prod [...] GM-S%202.0

AMD Athlon X2 7850 Black Edition $69

CPU-http://www.newegg.com/Product/Product.aspx?Item=N82E16819103678&Tpk=AMD%20Athlon%20X2%207850%20Black%20Edition

Crucial 2x1GB DDR2-800 $23

Ram-http://www.newegg.com/Product/Product.aspx?Item=N82E16820148163

Radeon HD 4770 $100

GPU- http://www.newegg.com/Product/Prod [...] 6814102835

Seagate 7200.11 160GB $39

Hard Drive-http://www.newegg.com/Product/Product.aspx?Item=N82E16822148397&Tpk=Seagate%207200.11%20160GB

Sony Optiarc AD-7200S $22

Optical Cd Drive-http://www.newegg.com/Product/Product.aspx?Item=N82E16827118029&Tpk=Sony%20Optiarc%20AD-7200S



Cooler Master 534 $74

Case & PSU-http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4435006&csid=ITD&body=MAIN#detailspecs





SOURCE:http://www.extremetech.com/article2/0,2845,2346482,00.asp