Sean's estimates seem about right, even though the two or three times I installed Oracle went pretty smoothly.
If BBoards is what you want, then they will work and be pretty intuitive. But, once you get OpenACS installed, don't expect all the module administration to be self evident.
I've been trying for years to figure out how to use certain features. (This is a plea for the writers of next user's guide! If it wasn't for the educational early photo.net and Arsdigita site many of us wouldn't be here.)
Of course the OpenACS Bboard patrol is always around to help out!
