I have a question regarding the use of external enclosures. My desktop recently died on me, and I never backed up my HD (I know, I know...big mistake). I removed my HD and plan on transferring my files over to a new PC using an external enclosure. Here is my question: Once you plug the enclosure into the new PC via the USB port, are you able to selectively pick and chose which files are transferred onto the new hard drive? Or does it automatically move everything from the old HD to the new one? Thanks in advance.