You can't transfer a OS from one hard drive to the other, you can, however, write an image using something like True Image, install windows onto the other drive, and then revert that OS to the image of your current OS, basically meaning you clean install Windows, but then instantly import all of your old settings etc. to your new drive.
Intel C2D E6320 / AMD Athlon X2 3800+
Gigabyte 965P DS3 / DFI nF4 Ultra-D
2GB OCZ Gold PC2-6400 / 2GB OCZ Gold PC4000
eVGA 8800GTS 320MB / eVGA 6800GS 256MB
150GB Raptor / 74GB Raptor
2x500GB / 320GB
OCZ GameXStreme 850w / OCZ StealthXStream 600w