Here is a large collection of walls I cropped to my resolution that I have collected from photo sets over the years. About 300mb and over 300 pics. Non-nudes and mostly sfw. I will be posting a few but feel free to contribute.
http://www.mediafire.com/download/k0u99x81q0knj5s/Idols.rar
http://www.mediafire.com/download/8fs4g1u0u8d1b4f/Idols02.rar