My HDD, 80 GB Hitachi SATA, is slowly dying. I need a new one. I want to upgrade to something around the 250GB range, but I don't know much about SATA. Is it possible to get the info off of this one (It's the only one in the PC) and onto another, OS and all, w/o shrinking the new one to 80GB? I am seriously ignorant and in need of help.