also don't get caviar green, it is slower than crap, either get a blue at least, pref a samsung or cav black 7200rpm, best option is 2 samsung f3's or caviar blacks 1tb's running in raid 0, will be wayy faster, not near ssd, but still blazing fast for a mechanical hdd.
The W/D green 2TB. is for a storage drive, will work just fine. The build has a 120gb. SSD.