There is a herd of all mountain (twin and non twin) skis that would serve you well. In fact, the Karma was never a favorite of mine. I think the new Bridge, which replaced the Karma in '07-'08 is a better AM ski than the Karma. The P-90, Salomon Lord, and Atomic Snoop are very good choices among the twins as well.
Among non twins, there are many good ones too. The Fischer Watea 84, Sollie Fury, Atomic Crimson, Nordica Afterburner, are four that come to mind. There are others in both categories but I'm not mentioning the stiffest or most agressive.
In general the skis mentioned in the twin group will have a little more bias toward softer snow and manuverability in the off trail. The non twins will perform a touch better on the groomers with a stronger turn finish and usually better grip.