Thanks for the review Kevin, and yes I'd also be interested in comparisons with other 1Gb 2.5" drives, especially as these will be like-to-like in terms of rpm.
The only other ones I know of are Toshiba MK1059GSM and Western Digital Scorpio Blue WD10TEVT / TPVT
As this will be a second storage drive for me, I'm less bothered about performance, more about noise/vibration, power efficiency and reliability. In your view, is the M2 OK on these counts?
cheers