I've never tried this myself, mainly because, well, I don't know... so I don't have an answer for you. You might want to check out the forums on DP Review (Digital Photography), here's a quick link to the forums:
http://www.dpreview.com/forums/
Just pick the forum for your digital camera. I've seen one thread about this on the Olympus forum already, so I'm sure there are more on the other forums. And there are certainly older threads about past meteor showers.
MissInformation
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Sometimes you just have to shoot for the stars...