You're right Bill. Dad always taught me, "when in doubt, don't." And I will most likely go with expanded metal. Here's what I really think the "deal" is, but don't know for sure. I've been told by welders that when welding galvanized metals you have to be very careful, wear the masks, etc, because it will give off toxic fumes. But a meat smoker won't reach temps anywhere near the heat of welding and I really doubt that the temp would be high enough to cause any reaction or release of toxic fumes. Now to use galvanized grates right over the coals, IE as in barbequeing....that would be different. But I'm still in doubt and will probably just follow dad's advise, unless someone, a real "expert," chimes in here with the final word on this subject. Thanks for your input.
Sam