That is true. RS is usually married to SQL Server.
However, you can choose not to install Reporting Services. Instead you can install it on a different server with SQL Server 2005(required).
Have you noticed though that Reporting Services is the real issue? You see lots of memory usage by RS?
Why don't you buy more memory? It is dirt cheap.
Kalman Toth - Database, Data Warehouse & Business Intelligence Architect
BI Workshop NYC - March 17-20: http://www.sqlusa.com/order2005bitr...008031720/