Paul Boyer, better known as Mormegil, has put together a series of WinCustomize articles called Icon-A-Day to show people how to create their own slick looking icons.
One of the new things we're trying to do at WinCustomize.com (thanks to people like Paul and others) is provide original content on a regular basis for people to learn more about how to get the most out of their PC.
Read the Icon-A-Day Articles: Icon # 1, Icon # 2, Icon #3, Icon # 4, Icon #5, Icon # 6, Icon # 7, Icon #8.