I just picked up a cheapie galvanised Jarvis Walker smoker to try it out, because eveyone on this site and elsewhere raves about smoked fish.
If it works half as good as others claim, I'll invest in a better version.
My research on the web says hot smoking should be done for a few hours, yet the instructions with the smoker, and in the posts above recon that 15 to 20 minutes is all that is needed. A bit confused but as soon as I get some fresh catch I'll start experimenting.