On my primary sign-PC, I use an inexpensive product from the Software995
folks, called Backup995 (oddly enough). For $30, you get the whole suite, the best of which is a PDF file maker. It also comes with a decent enough backup utility. I do use it, although it isn't all that robust. You can view all the files w/o being inside the program (good thing IMO).
On my laptop, I have a limited version of NTI BackupNow!, which seems to do a good job. My concern, however, is that you can only view the files in the backup when in the NTI software shell.
I just read a review that said Genie Backup Manager was the best [in their opinion] followed by NTI BackupNow!