Those of you creating high-resolution artwork for your CPs and marquees etc, I thought I'd point out a good site for cheap photos:
http://www.istockphoto.comThat site is similar to higher-end stock photo providers, like
http://www.photodisc.com but they are cheap (usually a buck a photo, unless it's marked FREE).
The reason to go for one of these services is that for print you need stuff that's REALLY high-resolution. Not the low-res "made for web" crap you get through Google Images. Plus you're helping out amateurs make a few bucks off their photos and illustrations.
Another source, for those who want space shots are , well, space sites like
NASA,
Space.com,
SOHO and other missions. Usually they have extremely high-resolution images available of planets, galaxies, nebulae, and the sun.