Or better still get RAID1 configuration of disks, most people, including me, think it will be OK I'll back it up tomorrow.  For ultimate performance mirror 2 RAID5 configurations.

The back up software supplied with windows is lacking somewhat to say the least which makes it harder for people. To back up onto an independent external drive this software is well regarded.

www.acronis.com/homecomputing/products/trueimage/

And every one said, 'If we only live,
We too will go to sea in a Sieve,---
To the hills of the Chankly Bore!'
Far and few, far and few, Are the lands where the Jumblies live;
Their heads are green, and their hands are blue, And they went to sea in a Sieve.

Edward Lear
http://www.nonsenselit.org/Lear/ns/jumblies.html