This is what you can do with 1 speedlite and no Photoshop!
Using digital backgrounds in photography is a great technique which opens unlimited possibilities for a photographer. However, not everything can be done in Photoshop (should I say “not easily can be done”?), and there are interesting lighting techniques which can be used to get amazing effects right from the camera, before any post-production.
Below is an example of such image. The only thing we did is adjusted colors in camera RAW converter. The whole thing was done right in the camera with only one light ($60 speedlite) and $100 optical attachment to it.. well, and the lens.