Just post the information about your laptop and we can google you a cheap hard drive from a safe place, with free shipping.
Tiger Direct’s Canadian site offers a 320GB drive, new, for $53.99- http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=6063509&CatId=2681
It is still at the repair shop and I am waiting for the verdict. It is a vaio