actually, yes, it does have an extra slot for a second hard drive. found that out today when i opened it up to clean the dust out of it. if i do get an ssd drive, it'll only be for WoW, maybe a few other games if i can squeeze them on there too, but mostly for WoW if it will improve my loading speed and help with fps. i read elsewhere that your not supposed to install any OS to an ssd cause it causes many problems and crash.