"USB Drawing Too Much Power" - LaCie Rugged Hard Drive

Hello,

My LaCie Rugged hard drive has been working fine for years...until yesterday. When I tried to connect the drive to my MacBook Pro, I got the following warning:

"Because a USB device was drawing too much power from your computer, one or more of your USB devices have been disabled. To prevent damaging your computer, the USB device drawing too much power has been disabled. Other devices may have also been disabled. When you disconnect the device drawing too much power, your other USB devices will be enabled again."

I've tried using a FireWire 800 cable to connect the hard drive, but no luck.

I do not believe that this is a problem with the cables I'm using, as the dialog continues to appear no matter which one I use. I also do not believe that it has anything to do with the MBP itself, as I have an additional hard drive (a Fantom GreenDrive, which requires external power) which works in both USB ports.

Is there any way to fix this problem? If not, will I be able to get my information off the drive somehow and at least transfer it to another drive at a Genius Bar or elsewhere? This is really important, and I'd appreciate your prompt reply.