For Those With New 2011 27" iMacs...

[phlydude]

Seagate Barracude - 2TB 7200 RPM - it is QUIET!

Here is the info from my system:

Intel 6 Series Chipset:

Vendor: Intel
Product: 6 Series Chipset
Link Speed: 6 Gigabit
Negotiated Link Speed: 3 Gigabit
Description: AHCI Version 1.30 Supported

ST32000541AS:

Capacity: 2 TB (2,000,398,934,016 bytes)
Model: ST32000541AS
Revision: AL33
Serial Number: xxxxxxxx
Native Command Queuing: Yes
Queue Depth: 32
Removable Media: No
Detachable Drive: No
BSD Name: disk0
Rotational Rate: 7200
Medium Type: Rotational
Partition Map Type: GPT (GUID Partition Table)
S.M.A.R.T. status: Verified
Volumes:
Capacity: 209.7 MB (209,715,200 bytes)
Writable: Yes
BSD Name: disk0s1
Macintosh HD:
Capacity: 1.75 TB (1,749,999,943,680 bytes)
Available: 1.73 TB (1,729,762,893,824 bytes)
Writable: Yes
File System: Journaled HFS+
BSD Name: disk0s2
Mount Point: /
BOOTCAMP:
Capacity: 250.05 GB (250,053,918,720 bytes)
Writable: Yes
File System: NTFS
BSD Name: disk0s3