This is HDR done with Photomatixn but I prefer to keep the effect to a minimum as over-doing it adds to much of an artificial effect - I only use HDR in landscape shots where I want to bring out the sky... As regards saturation, I added a tiny bit but this is pretty much the shot as it came out - The short story was I was about to leave as sky was very grey and suddenly I got a little bit of good light that came through - just enough to add that little something I was hoping for in the image.