can anyone tell me where i can find the screws for the hard drive bracket. I have search several vendors and most of them give me the screws that go into the hard drive not the ones that bolt down the actuall bracket. If i can go to the hardware store can someone tell me what size i am looking for. thanks for all you help PS. I need to add wireless to this laptop, which aiport card can i add or would it be better to get usb wifi stick.