I'm was tinkering with my latest project last night and have decided to use the PSU that came with the case (380watt) and place it down below the HDD rack. My only problem is that I don't know if the PSU can be left exposed or not. My worry is with the amount of current that passes through it when compared the the other tiems inside the case. Will this create problems? (Having it exposed, like a video card or mobo)