For ease of use, I would suggest Drive Image 7. The advantage of this is that the software can create an image to a CD or second hard drive without booting into DOS. I am currently using version 5 but I intend to upgrade soon.
There is a 30 day trial version of DI7 from click here, which you may like to try.
I have also used Ghost 2003 but this is similar to the older versions of Drive Image as it also requires that the computer boot into DOS.
Hope this helps.