Are you just transfering Your data to the new HDD, or do you want to clone the operating system partition?
If just transfering Your Data and files to new HADD, just connect up, partition and format new drive and do a copy.
If you are wanting to Copy the Boot drive (C drive) then:
..What Operating system. If windows 7, use Windows 7 Backup utility - works great.
... For windows 7 create the backup image and store it on an extrenal drive
... Disconnect old HDD, connect New HDD, stick your windows 7 installation disk in, select repair and select the image file - Wham bam- thank you Mam, almost done.