Ram
Why not go for 16GB for 80 $ more ?
http://www.pccasegear.com/index.php?main_page=product_info&cPath=186_538_913&products_id=16306
Check the last 5 ram from this page! Some good combos!
http://www.pccasegear.com/index.php?main_page=index&cPath=186_538_913&vk_sort=1&page=2