I may be purchasing a portable hard drive to backup data/pics. I do not want to store it in my house where my machine is kept in the event of fire, ect. I plan to store the hard drive at work and bring it home weekly, make my backups then bring it back to work. What is the best method of transporting an external HD? In a case? When at work what type of environment do I need to keep it in (temp, ect). Is there anything that I need to keep it away from or anything? Thanks