This is a collection of some good looking Apple/Mac wallpapers on the web that you can use to spice up you Mac user interface. Not that it needs any spicing up, but everyone needs a change once in a while so here is some inspiration for you. If you're one of those PC guys, let this be a wake-up call to make you come to your senses.
Alot of these can be found on deviantART under the Mac/PC OS category if you want some more good ones. Remember you can get most of the ones from deviantART in a larger size by clicking 'Download' in the menu to the left of the image.