OK,I'll make this a sticky in case people feel they have time to contribute things other than textures, or if they can make things sound simpler than I do (which I'm sure isn't hard!)
If you have any tutorials or articles - how to do things like making a previously non-teamcolourable area teamcolourable, how to make certain effects, whatever - then please either post them or email them to me We're always willing to take contributions, and the bigger the range of authors and tutorials, the better the contribution back to the community.