The PowerShot SD430 Digital Elph Wireless is the latest in Canon's popular range of Digital Elph point-and-shoot cameras. Like many other camera companies, Canon has been adding wireless functionality to its cameras, and the SD430 comes with a built-in 802.11b adapter for wireless printing with selected printers or for transmitting images to a PC. The feature works pretty well, but it ends up being a pricey convenience for a 5-megapixel camera with low battery life. Using the wireless connection, you can transfer images to a PC with a few button presses. It's a pretty speedy process: In my informal tests, transferring ten images of the highest size and image quality took about 25 seconds. And you don't have to do anything on the PC, because you handle it all through the camera interface, including choosing the images to send. (You can select individual images, just new images, all images, or wallpaper, which transfers an image and sets it as the Windows wallpaper.) Transfer...