My normal list of recommendations follow:

Analysis Services 2000 Step by Step, Microsoft Press

MDX Solutions, George Spofford, Wiley

msdn.microsoft.com -- AS Documentation, sqlserver.olap user group

http://www.mosha.com/msolap

http://www.ralphkimball.com

Hope that helps.

Steve Hughes

Magenic Technologies

steve.hughes@magenic.com