Building a Data Warehouse is a complex undertaking. Here are some links that should help clear away some of the smoke. These provide good sources of information pertaining to data warehouse technology.
DCI's Data Warehouse World Provides Event Info and Conference & Seminar schedules www.dci.com
Data Warehouse Information Center Publications, White Papers, Evaluations, Vendors www.dwinfocenter.org
Ittoolbox Portal for Data Warehouse Good general information and links to publications, articles, news, products and vendors dw.ittoolbox.com
The Data Warehousing Institute Significant publications and white papers. Data warehouse research and Best Practices are unusually helpful. www.dw-institute.com