Is there an easy / convenient way to resize any window on Kubuntu to half width of the screen?

With todays wide screen monitors, I have enough space to fit two windows side by side, but I never do that because the Maximize-button is so easy to click and I guess I'm just too lazy to fiddle with the window width manually. Is there something as a button that resizes my window on the left half of the monitor and a button to resize to the right half of the monitor?
Now the catch is that I have a two monitor set up, which would imply I can potentially fit 2 windows on each of the two monitors.

App that enables hotkeys to half-screen a window? doesn't work on Kubuntu 11.04 11.10