what is the spindle speed of the western digital green 1TB drive?

"You're right, it's 7200RPM:

Storage Hard Drive

Buffer Size: 32 MB
Capacity: 1 TB
Compliant Standards: S.M.A.R.T.
Data Transfer Rate: 300 MBps
Features: IntelliPark, IntelliPower (5400-7200), IntelliSeek,
Perpendicular Magnetic Recording (PMR), StableTrac
Form Factor: 3.5"" x 1/3H
Form Factor (Short): 3.5""
Hard Drive Type: Internal hard drive
Interface: Serial ATA-300
Interface Type: Serial ATA-300
Non-Recoverable Errors: 1 per 10^15
Spindle Speed: 7200 rpm
Start Stop Cycles: 300,000

CDW Canada: info is under Technical Specifications."