I have been trying out Colibri for the last little while, it is a perfect companion to SlickRun. Both launchers have their strengths and weaknesses and if you combined them into one you would have a kick ass launcher.
Colibri is nice because it can automatically determine what programs you have installed, there is no need to setup tons of magic words like SlickRun. The downside to Colibri is that it can't replace Start->Run like SlickRun can and the default hotkey (Ctrl->Space) is not a good idea if you are a developer that uses Visual Studio.