Personally i fix a computer for my friend,his configuration is almost the same except for the following.I urge you to use Corsair 2X2GB kit,it's overclockable somemore.Also for GPU,i would seriously recommend you to get 4870 from powercolor.This brand is well-known for making ATI-based graphics card,i intend to get one after i save up
Power supply get it from Corsair too,get the 750W or whichever you desire.I am using one now.
One more thing to add,since 4850 is quite cheap now,why don't you get 2 4850 to crossfire.reply me dude
