How to Upgrade Your Tiny Hard Drive to a Spacious New One and Keep Your Data Intact - Hard Drives - Lifehacker
http://lifehacker.com/5517688/how-to-upgrade-your-tiny-hard-drive-to-a-spacious-new-one-and-keep-your-data-intact

From Lifehacker

py of Windows already running for most of the free utilities to work; most laptops can only have one drive hooked up at a time. In this case, your best free option is the Linux-based Clonezilla Live CD, which streamlines the process of imaging your drive to an external drive or even a shared folder on another PC.