Things I post in my Wallpapers album are usually spare pictures that I just had laying around. Things that might have ended up on the cutting room floor in another time. This one, however, I actually like. It just happened to work out that the crop I wanted makes it suitable for a desktop background.
So if you want this guy staring at you while you do your work (and I'm sure you're working), grab the 2560x1600 version here.