If all you're looking for is some suggestions, let me save you a lot of time and sum up what you're likely to read in this post thread:
You can cook a whole competition on one WSM. three if you wanna get all expensive. They will pack in a minivan and cost around a grand total. Multiple teams consistantly win on them.
Build a drum! They're cheap and have great flavour. Multiple teams consistantly win on them.
Stick burner's rule! No need to sleep when you can put out flavour this good. Especially if it's a $12,000 Jambo. Multiple teams consistantly win on them.
Get an insulated charcoal cooker: Spicewine/Backwoods/Stumps/Superior/etc/etc/etc. Some have baskets, others use gravity. Paired with a Stoker or Guru, they let you get sleep, put out good flavour, and are mostly imune to the elements. Multiple teams consistantly win on them.
Get an FEC. Insulated, good flavour that won't over-smoke your meat. Imune to the elements. You get sleep, and these are super easy to clean. Multiple teams consistantly win on them.
I'm sure I've missed something, but the above covers 90% of what you'll read. Figure out what your budget is and what you wanna do, and go from there.
dmp