While they cost more than regular cameras, you'll never have to buy or develop film again. Use Steamtunnels' digicam guide to find one that's best for you. Cheap cameras have resolutions like 320x240 or 420x240 pixels. These are fine for posting photos on the Internet or sending them over email. However, if you plan to print your pictures, you need at least 1,280 x 1,024 pixels.
Some cameras now have two or three million pixels.
They go through juice like piranhas through a cow Memory Another area where cheaper cameras may not be enough for you. It would be awful to have the perfect picture opportunity and not be able to take the shot because there's no memory left. The way to make more space is to delete pictures you don't want, download them, or print them out. For example, the Olympus D340R can save 73 pictures in JPEG format on a 16 MB SmartMedia card, but only two in TIFF format. So traveling for long periods of time may be a problem, unless you bring a supply of batteries with you or recharge along the way.