1)   Stock Icons - XP and MAC style icons free 1.0
Original and professional stock icons for your web and software projects. Each stock icon is available in four different sizes and six different extensions. application icons, business icons, corporate icons.

 2)   Web Icons - professional icons for web 1.0
Original and professional web icons for your websites and software projects. Each web icon is available in four different sizes and six different extensions. It includes web buttons, toolbars icons, shopping cart icons, multimedia icons, user icons

 3)   X-MAC 1500 MAC style application icons 1.0
The X-Mac icon collection provides you with a realistic style which has all the main characteristics of Mac © icons.