Squintz,
I use Acronis True Image to make a complete drive image each night as well as a backup of my web sites. I keep 15 copies of each. These are stored on a 1 TB external drive as well as an internal drive. The drive backup takes about 3 hours so I start it at 2 AM. The copy over to external drive takes about 20 minutes. I love Acronis as it has saved me many times. I also use Acronis at home nightly on my PC's. It works excellent for the kids laptops. If they get a virus or other type of infection I simply restore the image and we are back in business.