Are you thinking about deploying PowerPivot, Excel Services, Reporting Services and/or PerformancePoint dashboard tools in your environment?  If yes, then the following Microsoft IT Showcase articles and downloadable white papers are a must read to jump start your project.  They cover topics like having the right onboarding processes in place, governance controls and much more.

Using SharePoint and Microsoft Consolidated Business Intelligence to create a Personalized, Company-Wide Business Intelligence Portal and an Enterprise Report Catalog  http://technet.microsoft.com/en-us/library/bb735122.aspx

Using Excel Services to Improve Data Retrieval Performance  http://technet.microsoft.com/en-us/library/hh530055.aspx

Using Microsoft PowerPivot for Excel 2010 and SharePoint 2010 to Deliver Data as a Service for Centralized Reports, Dashboards, and BI Applications  http://technet.microsoft.com/en-us/library/hh499043.aspx