I just bought Retrospect Express. It seems to be quite functional. I chose it for one feature that it has which other backup s/w doesn't seem to have, and that is that it can back up to an ftp server. This means I can back up my laptop when I'm on the road, to a directory on my web site; and when at home/work, I can back up to a system at work.
Both the machines are backed up to tape under their own administration.
Works quite nicely, and isn't too expensive.
The ftp capability is only available for the Mac version, not the Windows version, which made a change
How do I find out if my CD-RW is supported by Retrospect? I can't find any info on their web site besides the "comprensive device support" comment. I have a new CD-RW that still isn't supported by iTunes, so I'm justifiably cautious about buying any product that claims to support all devices.