Edit: Bell & Gossett have just released Revit Content have added the link in this post and on my sidebar.
It's been awhile since my last post, I have been extremely busy. I have populated a list of manufacturer Revit content on the right side of my blog. I have just went through all the links and updated any broken ones.
I hope this helps in your search for content.
please refer to my AUGI link on the right hand side of my blog for RMEP content http://forums.augi.com/showthread.php?t=99663