Power Surge ruined external drive

Wonder if anyone can help?
Am operating a Mac Pro at work and recently a power surge caused one of my WD books to corrupt... it's currently in the lab being worked on but needless to say that it was a bit of a nightmare and has prompted the purchase of a G RAID pronto.
Just wondering what could have caused the power surge? I'm running two Cinema HD monitors, one of which is using a higher power adaptor than was supplied. The last adaptor failed and the monitor would not operate with another of the same power... MAc Forums suggested that a higher power adaptor was the solution and it worked.
However, could this be the cause of the power surge? Just keen to prevent another drive being wiped out in the same way...

Hi CD,
Sorry to hear about your corrupted WD book.
I use Belkin SurgeMaster Surge Protectors to protect all my computer and TV/audio visual equipment:
http://www.belkin.com/uk/powersolutions/
My Mac Pro based computer system, which is used solely for my personal use (including photo editing, digital imaging and colour printing up to A2 size), and which is insured for £13,000.00+ on my home contents insurance policy, is protected by a Belkin SurgeMaster with a Connected Equipment Warranty up to £75,000.00:
http://www.belkin.com/uk/powersolutions/warranties/
I know that the Belkin SurgeMaster does not give the protection of a UPS for work in process, but I do not need that because Time Machine does hourly back-ups, which is adequate for my usage.
My hi-fi set-up is the only system which is not protected by a Belkin SurgeMaster. Instead, that is protected by an Isotek Orion mains filter, designed specifically for audio systems:
http://www.isoteksystems.com/cgi-bin/products.pl?id=13
As you are using a Mac Pro for work, perhaps you need a UPS to protect work in process against power cuts, but your ancillary equipment could be protected by Belkin SurgeMaster(s) at a fraction of the cost of a UPS.
Just a thought!
Regards,
Bill

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Hi,
Let me explain what I'm doing with back ups for the LR catalog. First I backup the catalog to the same drive my photos are on, simply to allow LR to access the catalog without having to power up an external drive. That LR folder contains 1.) the LR catalog, 2.) a previews file (lrdata), and a backup labeled with the date of the backup. At least once a week, however, I copy the LR file to an external hard drive, to another LR folder. I notice when doing this that the entire catalog is transferred to the external drive each time I do the copy.
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Buy a UPS of good quality and sufficient to your needs.
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Get your hands on a G4.
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http://www.thesafemac.com/mmg
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Hardware information
Laptop Model: HP compaq nx5000
Motherboard Name: Hewlett-Packard 08BC
Motherboard Chipset: Intel Montara-GM i855GM
Universal Serial Bus controllers:
Intel(R) 82801DB/DBM USB 2.0 Enhanced Host Controller - 24CD 5.1.2600.0
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C2 5.1.2600.2180
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C4 5.1.2600.2180
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C7 5.1.2600.2180
USB Root Hub 5.1.2600.2180
USB Root Hub 5.1.2600.2180
USB Root Hub 5.1.2600.2180
USB Root Hub 5.1.2600.2180
Driver Description: Intel(R) 82801DB/DBM USB 2.0 Enhanced Host Controller - 24CD
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