I had two hard drives sitting around so I decided to buy a IDE/SATA enclosure to use one as an external hard drive. Hitachi Deskstar 80GB 7200RPM SATA 3.0Gb/s: http://www.newegg.com/Product/Product.aspx?Item=N82E16822145082 Seagate Barracuda 120GB 7200RPM: http://www.newegg.com/Product/Product.aspx?Item=N82E16822148104 Both have 8MB cache and the Hitachi seems to have better seek time. Anyways, 40GB of extra space would be nice to have. Is there a big difference between SATA and IDE interfaces, as well as the quality of the drives themselves (i.e performance, reliability, overall build quality)? Go for the extra space or the performance?