It's probably considred too simple to be a tutorial, but try picking a nice neon-ish color and use glows(effects and layer properties).
Go to >adjustments and tweak the brightness and contrast till you're happy, luminosity works well too.
I made this just now as an example, it looks sort of like the picture:
It's not bright enough, but you get the idea.
Edit: Ah, there is a tutorial already.