Just any of those small hot smoker units would be fine mate. That is, if you just want to do a single fish at a time sort of idea.

I got one of those electric cabinet smokers a few months back, has a small electric powered auger feeding sawdust from an externaly mounted hopper onto a pan on an electric stove ring inside the smoker, and it smokes stuff brilliantly. Admittedly, for a cabinet full of fish, like a dozen puka wings, various chunks of flesh etc etc it takes a long time (pretty much over night) but for just a single fish, it is a lot quicker.

However, for just a quickie one hour smoke? Those little Kilwell smoker things are what you are after. All much of a muchness, your call, galv tin or stainless.

cheers, Stu.