Oracle Discoverer like app native for SQL Server? Can someone point me at some web based apps that work like Oracle Discoverer but native for SQL Server.  We already the SQL connector running to actually use disco, but was wondering what other options there were.  Not really interested in setting up connections inside of excel.

thanks.

--update 3/15/12

Oracle Discoverer is a set of BI tools that enable web based access to your data.  I'm looking specifically for the ad hoc data manipulation it does, as well as the admin tool set that exposes data, defines relationships, manaages data access, and defines calculated data items.
SQL Server 2005+ comes with an ad-hoc reporting tool called Report Builder, which does much the same sort of thing as Discoverer.  This will probably get you what you need.

SQL Server It also comes with a reporting tool called Reporting Services (SSRS), a SQL based tool that does the same sort of thing as Crystal Reports or Oracle Reports.  SSRS will consume a variety of data sources, including Oracle.  One key point to note about SSRS is that you can use it as a medium for publishing reports built with Report Builder.