I want to get opinions on the possibility of using a 20" 2.66 iMac with 4GB 1066MHz DDR3 SDRAM and 1TB Serial ATA Drive as an iTunes type server in my Media Room. I would stream the music to my AppleTV in the Theater area and my Airport Express in my upstairs office. It would sit on my bar in the Media Room and be the central point for all music that is streamed throughout the house. Some say that this might be over kill, but the large hard drive is attractive as a place to store all my music files. Thoughts?