SharePoint 2013 and SSRS integration

Hello Everyone,

I am trying to figure out how to install SSRS into my Test SharePoint 2013 environment.  First I have a SharePoint2013 server setup with all the services running fine with no issues.  I also have a SQL backend server along with separate Project Server and OWA Server.  From testing my environment seems to be working fine.  Next I want to integrate SSRS into my SharePoint environment.

I have read the below article as well has the links posted in the beginning of the article and I am still a bit confused.

http://timpanariuovidiu.wordpress.com/2013/03/05/sql-2012-reporting-service-sp1-and-sharepoint-2013/

Also still confused after I read this:

http://msdn.microsoft.com/en-us/library/jj219068.aspx

I don't want to install SharePoint, SQL and SSRS all on the same box.  I want to install SSRS onto a separate SQL server. Am I OK doing it this way?

Should I be installing a separate SQL with Reporting Services?  If so what SQL features do I need to select in the Feature Selection?

Thanks...