I have been involved in many DW, Data Mart, and BI projects. I have used SQL Server, Oracle, and DB2/UDB as databases. I have used various BI tools: Cognos, Microstrategy, Business Objects, MS Analysis (OLAP) Services, arcplan, Crystal, etc.
I have not yet noticed any cutbacks in DW/BI projects from a consultant point of view. I expect some rippling of the economic situation to affect budgets this year and next (assuming this is a short term adjustment or short recession).
-------------------------
The trouble with doing something right the first time is that nobody appreciates how difficult it was - Steven Wright