If Canon's EOS 30D Digital SLR is way too much camera for your purposes but you'd still like one that lets you transmit photos over WiFi, perhaps you should consider the latest addition to their ELPH/IXUS line, the Canon PowerShot SD430 Wireless. Some quick specs: 5.0 MP, 3x optical zoom lens, two inch LCD, weighs about 130 g (4.59 oz).
Like all the other cameras in the PowerShot family, the ergonomics of the SD430 Wireless are good and the body stylish and attractive, even with the bulky wireless antenna on its side. The photos are high quality as well, par for the course. At $499 it's a little more expensive than other cameras in its class, but Canon does package a wireless print adapter with it, something Nikon considers optional and Kodak doesn't make available at all; if you can see yourself sending photos straight to your printer then so much the better.