One of the fun things about digital photography, is playing with the pictures! If you haven't tried it yet, you should check out
Picnik. You can do all sorts of fun things with your photos. Best of all- it's easy! Here are a few examples:
Original
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Orton-ish
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Black and White Focal
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1960's
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These transformations took about 5 minutes, in total, since I just used the stock effects. I haven't tried printing them yet, but I'm interested to see how they turn out.
For those interested, I still haven't figured out how to photograph fireflies... they are so ethereal anyway. Maybe they aren't meant to be caught on film.