I've never really been interested in how other people set up their desktop but, since I had somebody ask, I thought I'd put up a snapshot of mine just in case there's anybody reading this that is curious for some reason (I've got a 23" display, so I had to shrink it quite a lot... sorry!).
Everything is pretty basic, but I do have quite a lot of Konfabulator Widgets stuck here and there... I've got "Calendar," "What To Do?" list, "Where is It?" search bar, "easyKal" appointment lister, "Picture Frame," and seven copies of "The Weather" set for various cities around the globe (currently: Cashmere, Seattle, San Francisco, New York, Edinburgh, Paris, and Tokyo). I've also got DragThing running along the left-hand side (it's a "must-have"), and LaunchBar going in the upper-right corner.
I used to have my desktop cycle through my photo album, but eventually gave that up as too distracting (preferring the less annoying Konfabulator widget instead). My current screensaver of choice is SereneScreen Marine Aquarium which is pretty darn special.