That Neon Tut looks as about as good as I've seen Octopus. I'll have to try it
I attached a couple of versions of Neon text. Can't remember the turorial site but you could probably find it easy enough. I learned this method a long time ago, pretty simple, Haven't found a good neon except the one that Octopus posted, Nice.
Create New image 500x500 white background.
Make your text Black as large as possible.
On text layer go to Filter>Blur>Gaussian Blur>set it 3-4(whatever)
Hit Control+E to merge layers.
Hit Control+I to invert image.
Then Control+U>Colorize, then pick your poison, that's it
Think i'll fiddle around and see If I can come up with a true tube Neon