I am working on a commercial app and am in search of some high quality icons and pngs for the app, but each site I go to is either offering the icons for free (not for commercial use) or charging 100's of dollars for the rights to use the icons commercially. If you know of any good resources for icons and images that can be used commercially at a reasonable price, please let me know. Thanks!

I looked over the available categories and could not find one that this topic belonged to so I placed it in the vb.net thread which is the language I'm using to develop the app. I'm sorry if I picked the wrong category for this.