I plan on upgrading in the future, which is why I chose that case, for the HDD I already have one purchased so I did not decide to put it on there, but it is a Westerd digital caviar Black 64 mb cache 7200 rpm and 1 tb, I am planning on getting the computer very soon, so I will probably stick with the 7870 GHZ edition, I earlier planned on getting the MSI 7870 GHZ edition but it no longer shows on the video card section of PCpart picker and newegg says they are out of stock on it.