The FZ18 offers a full set of manual exposure controls, which you generally adjust via the joystick on the back of the camera. For example, when in manual mode, you directly access shutter speed and aperture via the joystick. Some users might find it a bit small and hard to control, especially in cold weather or with gloved hands, so check it out before buying.
The rest of the control layout is typical for a camera of its class. One note on Review, however: It doesn't seem to do anything in movie-capture mode.