will battlefield bad company 2 work on pc with use of the xbox 360 controller ?

how much better is the radeon 5850 than the 5770 to warrant double the price tag

what is one of the best cpu coolers to get for this processor i have a limit of about 45 bucks

this would also include a quad core 3.4 ghz 965 125 watt would it also power that as well

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139006

u have a good point i might just get the 5850

why would u say only get 1 5770

out of these two setups which setup is better

2 radeon hd vapor x 5770 crossfired 0r

2 radeon hd vapor x 4890 crossfire

and the only reason i am asking because is there an advantage to have direct x 11 now or wil 4890 also perform well with direct x 11 games even though they are only direct x 10

cost is about the same though combos on newegg

thanks alot for your help ill look into getting something else