Any opinions on hard drives? Reviews seem to be all over the place results wise. I was looking at these two: Western Digital Caviar SE16 250GB 3.5" SATA 3.0Gb/s http://www.newegg.com/product/product.asp?item=N82E16822144701 Seagate Barracuda 7200.8 ST3300831AS 300GB 7200 RPM Serial ATA150 http://www.newegg.com/Product/Product.asp?item=N82E16822148064