Jock,
I'm always wary of making judgements on resolution, sharpness and the like of downsized images on the web, they are and always must be compromised by the very downsizing process they have undergone. As you know I've been shooting recently with an FZ200 and I find the images can take some sharpening, but care is required. You haven't told us anything about this image in terms of is it from a raw file or a jpeg, if raw what post processing has been applied to the image particularly in terms of sharpening, if jpeg what value of sharpening has the camera applied before you've even processed the image.
I'm pleasantly surprised at what such a small sensor camera like the FZ200 can achieve, particularly in good light which applies to your image, but I do find that mid to far distance foliage is particularly revealing of it's limitations.
With regard to sharpening in Photoshop, I've indicated in another posting my method of sharpening. I convert to lab mode, deselect the a and b channels leaving me only the lightness channel to which I apply the sharpening using unsharp mask Amount 50%, Radius 1, Threshold 0. I might apply this two or even three times, reselect the a and b channels to bring back the colour image and then using the history palette go backwards until I'm happy with the result. I often find that one application is all that an FZ200 image can take, not so with images from bigger sensors. Once satisfied the image is converted back to RGB.
Barrie