For Canon dSLRs without an AF-On button, you can usually set the asterisk or AE Lock button to be your focus button. In the Custom Controls section within the menu, find an option called "Shutter ...

Canon Gets Creative For Advancing Amateurs Canon is taking steps to give advanced amateurs more flexibility with a new “CA” Creative Full Auto setting on the EOS 50D Digital SLR camera’s mode dial.

Live View Mode with 3 AF Modes The Live View mode on the 50D offers face detection, which is something we haven’t seen with other Canon D-SLRs released prior to the 50D.

The Canon EOS 50D is fast and sharp, and it produces low noise at high ISOs. If you own compatible lenses, there's not much to think about. If you don't, Nikon's D90 might be worth a look.