Hi,

I am looking for a site where I can get collection of nicely done power point presentation on various business related topics, which can be used off the shelf in day to day work. The site should be a free to download site and not a paid one.

http://office.microsoft.com/en-us/templates/default.aspx

PP also comes with several templates or themes. Presentations are largely about content and its hard to find a template for specific content. So most PP templates are a collection of slide layouts.