So I'm crap with photoshop, but I'm learning. I know enough to shoot in raw, so I can sort out the white balance and exposure later. Every now and then, though, I manage to do what I want.
Shooting from Bonaly Park across the city, I had a huge range in brightness to contend with. I exposed for the clouds, and hoped for the best. When I got home, I took a second jpg from the raw file, and boosted the exposure. Created a gradient layer, and blended the two pics.
Ok, I really should have gone for a much smaller aperture (F5.6 on this) and a slower shutter speed (1/500th), but compared with the picture I actually took, this is quite a result.