I noticed all the Mint editions have screenshot threads but I didn't see one here so if you've got a favorite distro you've been giving some love to, I guess you can post it here if you like. Mac and winblows at your own risk. (Hey, whatever blows your skirts up. It's a free country)
This is my Arch setup, it's pretty much my baby. The things I love most about Arch is that you roll your own and it's exactly what you make it and this one kicks serious ass even if I do say so myself. It's blazingly fast, extremely stable and powerful yet remarkably light. No bloat and all the goodies you want. And Arch is arguably the most flexible distro of them all with the possible exception of LFS.
Putting together an Arch system is a lot of fun and you learn a lot about Linux internals and BSD style scripting.
The basics are in my sig.