I am a bit biased but you might want to take a look at Cizer's Products.   We have two core capabilities within our CNR platform.  One is the ability to design Reporting Services RDL compliant reports in the browser (think of it as zero footprint Report Design similar to Visual Studio's report designer).   The second capability is provided via our QuickQuery technology which gives users the ability to browse schema objects to which they have rights and then build a Reporting Services compliant RDL report via a few simple selections for included columns, filtering, sorting, and basic formatting including uploading a logo.

We have videos and plenty of references on our website for how our technology works.   The best news is our technology is a cost effective addition that takes full advantage of the Reporting Services licensing you likely already own.    We also expose much of our functionality via webservices in a Drop In Reporting Development Kit.

Our website is http://www.cizer.com.

Drop me a line if you like tjohnson AT cizer DOT com.    I'd welcome the chance to discuss further.

Cheers,