I am new to SSRS also, but this book helped me "Applied Microsoft SQL Server 2008 Reporting Services" by Teo Lachev

The extra to the book is the video's he has on his web site.

http://www.prologika.com/Books/0976635313/Video/amrs2008.html

You might want to go through his videos. It helped me with SSRS and I still go back to them for referance. 😉