I have recently been talking to a lot of customers and partners about what is the fastest way to deploy a Microsoft BI environment leveraging SharePoint and i usually point them to the following articles on msdn which have Power Shell scripts to deploy the environment.

Use PowerShell to Create a Windows Azure VM With SQL Server BI and SharePoint 2013

http://msdn.microsoft.com/en-us/library/windowsazure/dn385843.aspx

Use PowerShell to Create a Windows Azure VM With SQL Server BI and SharePoint 2010

http://msdn.microsoft.com/en-us/library/dn175489.aspx

Of course should you just wish to consume a service that provides you with the BI capabilities then Power BI at www.powerbi.com will be releasing soon.