Hello everyone, i need some advice. I have a 2 HDDs 1) Seagate 160gb sata 7200.10 (OS installed on this drive) 2) Seagate 1TB Sata 7200.12 (for storing music movies , other) i want to know if i buy a new Seagate 250gb Sata 7200.12, and install OS on this drive , will there be any significant improve in performance of OS(Vista).If yes I will sell off 160gb then. Pls suggest if i shud opt for 7200.12 for OS and sell off my 7200.10 160gb hdd. Will it be a good deal? Will it benifit me?.