bryanlarsen parent
AFAICT, KDE does exactly what he's looking for; integrating tiling into a full featured desktop manager.
I was upset with the KDE project for some years because they dropped amaroK during the transition from KDE 3 to 4, but after seeing the new work in Plasma and moving on to other music players once amaroK 3 rotted. I really love the work they've done and I'm back to having KDE as my daily driver. Previously I used wmii, dwm, and xmonad on different systems.