Research a UDS. They are easy to make, cheep, and are a great BBQ. There is a 200+ page on them on BBQ Breatheren forum.
A true smoker is good for only one thing - smoking. UDS is a great BBQ - without the 1k+ price tag of a Klose or similar pit. Plus they are as economical to feed as a green egg.
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toy I want is a BBQ Guru - but that is out of your price range for now.
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fwiw the Webber is a good grill (got one). I like the Webber gas grill as well (got one). I also have a custom offset, my neighbor has a custom Klose (his is closer to the $10k range) - he even is thinking of getting a UDS. They are incredible to cook with - just close to -0- brag factor (accept from the UDS community).
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Oh, UDS are sold commercially
Big Drum Smoker- I think the drum size costs $350. Depending on how resourceful you are, you can almost always make one for less than $100.