Hi , i am thinking that i may be needing a new harddrive due to the possibility that my current one has failed.. I have a general idea tat it's between the Samsung F3 spinpoint http://www.ebuyer.com/product/173804 or the Western Digital 1TB Caviar Black(7200RPM) http://www.ebuyer.com/product/146082 or save up some more for the velociraptor http://www.ebuyer.com/product/149434. Or anything better you recommend but getting an SSD is not an option.