Paul , if you're really stumped , do what you have to , however , if you get the (what did you say - Charmglow?) . IMHO - I feel you should go ahead and recieve the Smoker and learn it , as I was saying the other day on the PM , just don't put anything in the Gas side (like charcoal or wood - you can block the holes and if one opens while cooking with Charcoal and you forgot to close the Propane bottle , Bam!!!) .
Learn to control the heat in all 3 ways and whet your skills on the cheaper unit , then when it's time to re-arm yourself with a pit with different challenges.
Start a log of your smoking sessions and review each smoke , then correct next time...
Have fun and ...