One more thing on Norton 360. It interfaces with your external hardrive if you have one. We bought a Seagate Free Agent to back up our photos and important documents. If you have anything on your computer you can't afford to lose, get an external hardrive. When I loaded our Norton 360, it immediately recognized our external hardrive. You have to tell it what files to automatically back up, then that's it. There is a spot on the Norton 360 Dashboard that tells you what and when your files are backed up.
If you've never had a hardrive crash, you're lucky. Chances are, you lose all your files, pictures and documents. Then, you have to reload your entire system. Lastly, if you are using Vista, you'll want to make sure you make copies of your operating system. Windows 98 and XP used to give you CD's for this. Vista does not. Copying it to 2 DVD's should cover it.
Cost of Norton 360 is about $65.00. Cost of an external hardrive is about $80-$100 depending on the size you get. Our Seagate Free Agent ran $80 bucks...
I love technology when it works... Pat
ps... And, no, I don't work for Norton, Seagate, Best Buy or Circuit City...