Wallbase is the most comprehensive archive of wallapers for your desktop.

THe inteface is attarctive and fairly simple. Plug-in keywords (designate resolution and other parameters if you chose) and hit search. If your looking for widecreen 1900 x 1200, that's all you'll be shown. Laptops can indicate size and results will selected for that type of screen.

Search is very sensitive to search terms, so keywords must be chosen wisely to obtain best selection.

Have fun with this.

Well i haven't gotten any viruses yet so thats a plus :)