Recently I followed a cool screencast tutorial on Abduzeedo.com : Super Easy Neon Style in Photoshop and gave a quick try.
The final result is beautiful and I like the possibility in adjusting colors before and after you hit the play button on Photoshop Actions panel. Actually it was a very easy tutorial, which I am sure everyone can easily follow just like I did. But with the series of settings on the tutorial, which you may miss them in some points to produce the neon font effect make me think to create a set of Photoshop Actions. I made 3 variants after I played a bit with the settings from that tutorial and now you can download it for free.
See the demo-screencast below to use the photoshop action. Feel free to ask me questions or send feedbacks via our comment form.