Cool Toolbar Icons is an extensive set of icons for modern applications. Bring your projects to life and give them the professional look using these colorful and well designed icons. With numerous icons in the package, there is something to suit all sorts of applications and Web sites. Each icon is available in a wide variety of sizes: from 16x16 to 48x48. There are also various color depths, file formats and states available. For maximum versatility, each icon is provided in bitmap (BMP), icon (ICO), GIF and PNG formats. Every icon is also available in three different states including normal, highlighted and disabled.

A complete set of professionally designed icons like this will save you time, money and effort, since you won't have to go through the expense of hiring a designer and they also have a higher quality than majority of the free icon packs available. Using this solution, you get guaranteed results quickly. You can find a preview of all the icons in the package on the website and there is also a demonstration version available.

A lot of icons for Windows 8: http://www.highresolutionicons.com/