audioguru, actually that's entirely not true. If the transformers in that circuit are even halfway decent you could easily step 9 volts up WELL past the ability to kill. If you don't believe me.
**broken link removed**
Sorry for the plug for the website, that's how the link copied.
I wouldn't help the poster out with his circuit because if the transformers/coils aren't properly valued to current limit they could easily kill someone. Best left to people that actually know what they're doing.