Can I set an alarm when external drive powers off?

I must be one of the few people who have no trouble at all with TM! I use it to back up about 1TB of photos (I am a semi-pro photographer) to two different drives - keeping one offsite at the office and rotating them regularly.
However - my external drive is hidden at home when connected. When we have a power outage (all too often here in MA) then the drive powers off and does not power on again (I am using MacAlly enclosures - have tried several, these are the most reliable to date).
Given that TM works so well, I never think to check if it has backed up so if the power has cycled I don't notice that TM has not run. Is there any way to set an alert (dialog box popup, auto email etc) to tell me when TM cannot access the drive as it is powered off. Is this buried in Leopard, or does anyone know of a 3rd party app?
Thanks

I could not agree more with Kappy.
I would never plug either my Mac or my external into anything but a UPS. They've gotten much less expensive lately, and even a fairly small one ($100 to $130 or so) will run my Mac and external for an hour or so.
But you don't necessarily need even that much; just enough for your Mac to power itself down in an orderly manner.
If you have a power failure to either your Mac or external disk, it can corrupt your data. I'd recommend using Disk Utility (in your Applications/Utilities folder) to do a +Repair Disk+ (not permissions) on your external, and a +Verify Disk+ (not permissions) on your internal. If the internal shows errors, you'll have to use the copy of DU on your Leopard Install disc to fix them. Post back if you need to do this but don't know how.

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