I do believe that wallpapers are the kind of stuff that influence the mood of a person. Its choice also reflects the nature of the person. So its important that before we really get to discuss the various complex issues and the techy stuff we actually find a nice wallpaper for ourselves. Here I have a list of few websites that offer beautiful wallpapers. Do have a look at these links, hope you find a nice wallpaper for yourself that suits you.
27 Captivating Black and White Photos: http://photoshoptutorials.ws/creative-inspirations/photography/27-captivating-black-and-white-photos.html
40 mind blowing Digital space paintings: http://psd.tutsplus.com/articles/inspiration/digital-space-paintings/
20 Inspiring Photo Realistic Drawings: http://dzineblog.com/2011/05/20-inspiring-photo-realistic-drawings.html
32 Examples of Good Portrait Photography: http://dzineblog.com/2011/05/32-examples-of-good-portrait-photography.html