if overclock will need a cooler coolermaster 212 evo for about 40 bux is best cheap one out there
if u want a gtx card dont buy it yet, the one you have chosen is pcie2 and next month they are rumoured to be bringing out cheaper 600 series (pcie 3 like your motherboard and cpu)
infact i just bought a system with an ssd an no gpu so i can buy one when they come out lol
I don't plan on overclocking for a while, not until it feels like my computer will need it. I think my setup will be fine when I do start overclocking though, and I definitely will get that aftermarket cooler
Is the gigabyte HD 7850 better than the Sapphire HD 7850?
actually no the sapphire 7850 has a core clock of 860 while the gigabyte 7850 has one of 860 standard but you can overclock to 975 without voiding warranty and gigabyte has a better return service in my opinion and on the subject of the case its ok all of this is your opinion
EDIT:i mean yes the gigabyte is a better offer and is better than the sapphire 7850