I recently moved my firewire hard drives to my AV closet in the basement. I have 3 FW drives connected to a G4 cube down there. I then access these via my network. I typically leave the drives on 24/7 and I'm attached to them 24.7. They are sitting on top of a wooden frame that was made for my TV. These things tend to get hot. Should I be worried about fire hazards? I guess the smart thing to do is to go down and shut them off when I know I won't be using them. What do you all think?