ebeye is right to put the hard drive as the lowest priority. 60gigs is enough for most people. Also to use a SATA HD you need either a motherboard that has the correct connections or a seperate PCI expansion card. And the way I understand it now, You don't really use the potential SATA bandwidth(150MB/s) to its fullest. For a few seconds there maybe a burst that gets up near 100MB/s but for the most part bandwidth usage doesn't fill up the 133MB/s bandwidth on the latest plain ATA generation. To get a performance boost, it is best to get a HD with a large cache like 8MB. If it just so happens that you find a SATA HD with a 8MB cache and your motherboard already supports it, then go ahead a get it if you want. But I wouldn't go out and splurge on a new HD and mobo/expansion card just to say I have a SATA hard drive and get a slight speed boost.
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