I have a 4 year old Wii, recently started using a USB loader on it. I keep my Wii lying down and have the USB hard drive on top however after long periods of use the hard drive gets a bit warm and I'm worried it might damage the Wii. Do you guys know if it's OK to keep it on top? I use an old laptop hard drive inside one of these cases: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=150713549390