So, I thought I'd start a thread to pool the knowledge of people who know what mod clashes with what mod. Some fit together, but others, when used, can over-ride the intentions of the mod, and cause a strange, poor blend of both. These do not cause crashes, but do cause the game to not really run like it should.
Modders can also come in and put in their professional two-pence about what their mod does not work with. Like, say, Expanded Gameplay and Expanded Bandits cause the game to not load any of the new bandits, or something like that.