Here is what I found about static electricity and Verylow current (0.1pA) Input Op-Amps.
http://www.national.com/rap/Story/0,1562,4,00.html
It is intresting but way over my knowledge to understand.

And here is another article about reed relays :
http://zone.ni.com/devzone/c...0C00753240

Farshid