Making Sci-Fi ish images

I have images like the following:



I want to make them look Sci-Fi ish like the followings:



and



How can I do something like this in PhotoShop?

 

You could try this tutorial. It's not exactly what you want, but I'm sure you could use some of techniques they use in your project.

There is also this list from Smashing magazine of various tutorials where you might find something helpful.