Hey, I've owned my mac for some time now and my Hard Disk space is running out, I was thinking of upgrading my Hard Disk Drive. I phoned apple store (2 hours away) they said they don't have the right hard drive. So I've took it upon myself to perhaps install a hard drive. My spec is below: 2.93GHz, Intel Core 2 Duo, 4GB 1067 MHz DDR3, 24" iMac I'm pretty sure I can run 1TB... but could I run this 2TB or would the machine overheat? Any advice would be greatly appreciated.