All my hard drive is full now. There is nothing in there that I can delete and make some space. Even my C drive which contains the OS is almost full too. So I was thinking of buying a new 500gb hard drive. How much would it cost for a standard 500 drive? Which models are good and I should check out. The hard drive should be a SATA hard drive with a good read-write speed. I am not looking for very expensive ones.