Thanks John. I think we have penetration. Well, almost. Since I am an electronic dummy, I need to know which TVS diode to buy. I did a search for them and came up with way too many to be able to make an intelligent choice.
For the circuit breaker, the closest I can find to your suggestion of 5-7 AMP breakers is this at All Electronics
http://www.allelectronics.com/...rcuit-breaker/1.html
What about an in-line glass circuit breaker ?