currently, im running a 40 gb drive and i want to upgrade to a 160 gb i have laying around. I realy dont want to have to reinstall everything and go through all the upgrades and settings... is there any way to juss copy my exact 40gb drive to my new 160 gb drive and have it boot up and work perfectly fine? any tools i need or anything special i need to do? Is it even possible? please help. thanks!