Hi All, I trying to search for a mobile or tower crane in Revit BIM, I'm trying to model a project for the middle east and I need to show how the building goes together in conjunction with the crane, any help will be very appreciated...

Try the cranes in our CAD Blocks section:
http://www.cadforum.cz/catalog_en/?q=crane
 
e.g.:
http://www.cadforum.cz/catalog_en/block.asp?blk=4932

Thanks thats brilliant!!