Good backup utilities aren't expensive, and if you actually place value on
the data you're going to back up, are an excellent deal.
You should consider the difference between 'backup' and 'imaging'
utilities,
and choose which one you actually need. Imaging will create larger files
that can get your entire system back to a running state in a short time;
backup utilities won't create a bootable system, and are more suited to
backing up selected portions of data (not the entire system).
For reference, Acronis True Image, which I like more than Ghost, can be
had
for about US$50:
http://www.acronis.com/homecomputing/products/trueimage/
And Backup Plus, which creates .bac files that are really .ZIP files, can
be
had for about US$30:
http://www.backupplus.net/
The fact that these are really .ZIP files is important. It means that
should problems arise with the backup archives or should the installed
program be unavailable, you have options for getting access to the
backed-up
files. ZIP file formats are well-understood and there are lots of
repair
and utility programs.
Whatever way you back your files up, it is important to verify that the
backups worked.
HTH
-pk