So I started transferring data from my 250 GB hard drive to a new 320 GB hard drive I bought a couple hours ago, about 60% done. Now it started storming outside and usually around here when it storms my power also goes out. So I'm wondering would it cause a problem if the power did go out during the transfer? I could press Cancel but does that mean it will resume the transfer from where it left off or what? Should I cancel the transfer or just let it keep doing during the storm?