If you want to smoke low/slow/accurately on a weber kettle, then ask for one of these for your next birthday:

http://store.thebbqguru.com/weborderentry/Party%20Q

They sell adapters (about $10) for many common setups including the basic weber kettles... You can put in a pile of charcoal + smoking wood, dial in a temperature, and you're solid for HOURS
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The charm of fishing is that it is the pursuit of what is elusive but attainable, a perpetual series of occasions for hope. -John Buchan