Another detail regarding the Seagate 7200.10 disk (and perhaps other series as well). These disks are SATAII capable but aren't SATAII enabled by default. The difference is 300MB vs 150MB transfer rate. It actually does matter only when you are running RAID array because no single disk has 150MB sustained transfer rate so far. At least a mainstream disk. If you aren't on RAID then it is not that important (there is no big performance gain - most of the gain is only when PC is reading from disk's internal cache). Anyway, if you have SATAII capable motherboard then you might double check whether you are on SATAII or not. To enable SATA II you have to remove a jumper located right to the data cable connector (it is also described on the sticker attached at the top of the drive). That's it.