This may not be MEP but I like the manufacturers getting into the game...USG Gypsum has added a substantial amount of content for their products to their website at http://www.usgdesignstudio.com/ that includes Revit families for walls, ceilings and more! This is for all the folks that keep asking us about the manufacturers and who's making content. From what I found they're light years ahead of other prefab wall and acoustial ceiling manufacturers, but I've talked to others lately that are working on the same thing, so it should get interesting.
Try this stuff out and let me know what you think -
This a transfered post from cadrebsd.blogpsot.com. thanks - David B.