I recently purchased a 2 TB TC. I also have a 2 TB HD on which I store all of my data. Since I use the data on my external fairly frequently, I'm nervous about putting it on the HD in the TC, because frequent use would cause the hard drive to get warmer inside and lead to failure sooner. Does that seem reasonable? Also, does plugging in a 2 TB HD (which is plugged into an outlet) add heat to the TC?