You can request the templates from Autodesk using this form.

COBie Toolkit for Autodesk Revit 2011
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COBie Toolkit for Autodesk Revit 2012
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COBie Toolkit for Autodesk Revit 2013
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For a step by step guide on how to install and configure Revit for COBie (Construction Operations Building Information Exchange), download the following document:http://projects.buildingsmartalliance.org/files/?artifact_id=5312

Or you can use these older direct links (based on Revit 2010)
Creating a “COBie2” Enabled Project in Revit (download files)

via
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The Revit platform’s performance can depend as much on the knowledge, skill, and practices of its users as on the hardware environment provided for the software. To address both of these areas, the Revit platform team has assembled this collection of hardware requirements, recommendations, and modeling best practices as researched by both internal development and our community of dedicated customers.
Model Performance Technical Note (pdf – 973Kb)

More whitepapers at: