I'm glad you found the thread. Thanks Roger!
How about this then as the first level spell:
Evocation [Electricity]
Level: Sor/Wiz 1
Components: V, S, M
Casting Time: 1 standard action
Range: Close (25 ft. + 5 ft./2 levels)
Effect: Ray
Duration: Instantaneous
Saving Throw: Fortitude partial; see text
Spell Resistance: Yes
A ray of electrical energy projects from your pointing finger. You must succeed on a ranged touch attack with the ray to strike a target. You gain a +3 bonus on attack rolls if the opponent is wearing metal armor (or made out of metal, carrying a lot of metal, or the like).
The ray deals 1d4 points of electrical nonlethal damage and the target may be stunned for up to 4 rounds. The target is released on the first round she succeeds at a fortitude saving throw or after 4 rounds. On a critical hit, the target takes 1d4 points of nonlethal electrical damage and an additional 1d4 lethal damage.
Material Component: A scale from a shocker lizard.