Same for me. The one key feature (that everything else probably can be configured to do if it doesn't do it now out of the box) that I mold my workflow around is the ability to roll the mouse wheel on the background in KDE and switch virtual desktops that way. For command-line (which I'm in all the time), I use yakuake which slides a terminal window down from the top of the screen like Quake used to do with it's console. This simple feature makes it easy for me to switch between a gui-oriented way of thinking and handling the next coding change in a terminal. You can peel off another shell in yakuake and surf between them. Silly, I know, but for me it works great.