Lots of great information and discussions on everything BBQ related, although the Brethren has a lot of stuff for competition BBQ. Both sites have plans and discussions on the infamous UDS (Ugly Drum Smoker). We have a reverse flow Lang smoker we use in competition. Love it, great design. Meadow Creek has a very similar design too. If you want something a bit larger and have good metal working skills then look at the reverse flow designs.
P.S. - I'm new here, been on a competitive KCBS team for about 10 years now. PT Fire, PT EMS, a little Law Enforcement too (but don't hold that against me).