I have been running the following drives for about 3 weeks with no problems:

Western Digital Caviar Green 3 TB 5400 RPM SATA III 64 MB Cache Bare/OEM Desktop Hard Drive - WD30EZRX

I previously had the 2Tb enterprise drives from Hitachi running, also without exception. One note, the enterprise drives ran quite a bit warmer to the touch than the WD Green drives run. I probably could have waited on the second set given Hitachi just started shipping their 4Tb drives this month.

Reg

McInt MS2301, C500T, Sonus Faber Strads
Sooloos C15, MD600 2x3Tb, Twinstore 2x3Tb, 808.3, MS600