Download Page: http://www.microsoft.com/downloads/details.aspx?FamilyId=d07219b2-1e23-49c8-8f0c-63fa18f26d3a&DisplayLang=en

Whats new for Reporting Services in SP2: http://download.microsoft.com/download/2/B/5/2B5E5D37-9B17-423D-BC8F-B11ECD4195B4/WhatsNewSQL2005SP2.htm#BKMK_ReportingServices