I recently came across a glowing review for Checkmate from someone who claimed to be in the computer repair business. I found it, as well as the overall idea behind Checkmate, to be interesting. The number of hard drives that I own has increased to quite a number, and the idea that the computer would be checking them and their data over in the background regularly is reassuring. Yet at $30 ("introductory price" that seems to have been running for about two years), it's not exactly cheap. Are there any Checkmate owners on the forum who can offer their thoughts? Worthwhile, useful investment? Nothing more than peace of mind? Waste of money?