I just upgraded to the development version of Ion, and I've fallen in love with it all over again.
Gnome certainly is nice, but so is knowing where your windows are without hunting for them or using the mouse. Streamlined and delish.
All that's left is getting the wireless info in the status bar working properly, and I think it's probably as close to a perfect working environment as I can get. (especially now that the annoying gtk-focus bug was finally fixed after two years.) This is also forcing me to look at Lua a little closer. Woot.