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#11
I presently run both Black edition and Green Power models with a Vista dual boot set up on a GP model while the 64bit 7 is sitting on a Black edition. The two main internal storage drives are presently Black edition Sata III drives with the 64mb cache 6.0gb/s transfer rate on the Sata III bus however.
The host drive is the Sata II typically seen while Sata III is backward compatable for use. For several newer boards being seen out now however only Sata III ports are present. You may want to consider going with a Sata III drive if you plans to custom build a new case any time soon where the S3 ports are present.
As far as the Green Power models while Vista was only recently added back onto one those are best suited for storage devices typically being the more energy efficient rather then performance line as seen with the Blue/SE and Black edition or even RE models.
As far as brands Hitachi is more recent name and far from the best as far as quality when placed against the two leading contenders being Seagate and WD. I've been running WD drives since the 90s as well and only saw one stuffed when loaned out to someone who never cleaned up his case and simply cooked the then 6yr. old drive!
(Someone known here got stuffed when buying a few hitachi drives apparently or so was the complaint heard)