Western Digital WD15EARS
1.5TB Hard Drive
64MB Cache (most drives from other manufacturers only has 32mb)
OEM Caviar Green
As hard drive capacities increase, the power required to run those drives increases as well. WD Caviar Green drives make it possible for energy-conscious customers to build systems with higher capacities and the right balance of system performance, ensured reliability, and energy conservation.
I have two of Western Digital earlier 1TB 32mb 5400rpm (green power) drives, they have been running 24 hours never had a problem with them.
****Expired 12th Feb 2010, price has now gone up to £81.44****