BleepingComputer.com: How to reliably clone an HDD?

I have a windows partition on it's own HDD in my Mac Pro. The HDD is a bit noisy and I have a drive ready to replace it, so I want to know the best way to go about it. From what I understand, cloning can be risky and cause errors. What is the most reliable way to do this?

http://clonezilla.org/

If you are using at least one of either Seagate or Western Digital branded HDDs in the system, you can take advantage of the free version of Acronis' imaging and cloning software provided by each of those manufacturers. The Acronis software can be run either from within Windows or from a bootable CD, which can be created once the utility is installed on a Windows system (and it is a wise to create this CD immediately). The bootable CD will be needed if ever the Windows system is not accessible.

Seagate: DiscWizard

Western Digital: Acronis True Image WD Edition