Under Mozilla the middle button of the mouse acts as a "open in new window" button when it is used to click links. When the mouse has no middle button, holding down the control key while clicking on a link performs the same function. Kmeleon would benefit from a similar arrangement, especially if it would include support for the "open in background window" function. Ctrl-shift-left-click or maybe Ctrl-right-click would do nicely.
Thanks