Nothing more dangerous than a herd of stampeding snails! "Man! look at that S-Car go!"
It sounds like over there they are using what we call a "Weed burner" here.
I have not tried this but the concept is similar to florescent lighting. Your flourescent tube actually being a leaky capacitor in a parallel LC resonance circuit. Which means your CCFL ballast raided from a laptop display might be adequate for a smal scale "Snail Ranch." Wire the leads that would go to the tube to your tracks as described above.
How would you hogtie a snail BTW?
The Zetex Application Note:
http://www.zetex.com/3.0/appnotes/apps/an17.pdf
would likely be a good place to start- take figure 3, and instead of driving a flourescent tube, run it to your strips in an alternating fashion. It is also a good starting point for low voltage florescent lighting ballasts too. Updated in October of 07, it may have been missed.
I can see the French Western now in translation- "RAWSLIDE!" With Rowdy Yates.... I don't think you could even get Clint to do a cameo with that one.
30 KiloWatt Brats anyone?