Hi guys, I would like to upgrade the hard drive in my Toshiba A30 laptop from 30gb to possibly 60 or 80gb.The processor is a p4 2.8ghz with 512ram. The present disk is a Hitachi Travelstar Pt no 08k0910. 4200rpm. 1/ Can this laptop be upgraded safely? 2/ will the Phoenix bios cope being upgraded? 3/If this is possible and i replaced the existing hd with another Hitachi travelstar, Is there a particular Part no i would have to look for, for compatability purposes, and would a speed advantage to 5400 or 7500 give me a vast improvement.