I have now concluded the series of material constituting the Deployment Series of blog posts – and thus my brain-dump of the answers to all of the questions I find myself repeatedly answering. For quick access, please refer to:

• Part 1 – Kick-Off: http://blogs.msdn.com/rdonovan/archive/2010/03/15/commerce-server-2007-2009-deployment-series-part-1-kick-off.aspx
  
• Part 2 – Types of Deployments: http://blogs.msdn.com/rdonovan/archive/2010/03/17/commerce-server-deployment-series-part-2-types-of-deployments.aspx
  
• Part 3 – Choosing the Right Software: http://blogs.msdn.com/rdonovan/archive/2010/03/19/commerce-server-deployment-series-part-3-choosing-the-right-software.aspx
  
• Part 4 – Stand-Alone & Dedicated Servers: http://blogs.msdn.com/rdonovan/archive/2010/03/22/commerce-server-deployment-series-part-4-standalone-and-dedicated-servers.aspx
  
• Part 5 – Single-Environment Web Farm: http://blogs.msdn.com/rdonovan/archive/2010/03/24/commerce-server-deployment-series-part-5-single-environment-web-farm.aspx
  
• Part 6 – Multi-Environment Deployments: http://blogs.msdn.com/rdonovan/archive/2010/03/26/commerce-server-deployment-series-part-6-multi-environment-deployments.aspx
  
• Part 7 – Building and Testing Environments: http://blogs.msdn.com/rdonovan/archive/2010/03/29/commerce-server-deployment-series-part-7-building-and-testing-environments.aspx
  
• Part 8 – Maintaining a Healthy System: http://blogs.msdn.com/rdonovan/archive/2010/03/31/commerce-server-deployment-series-part-8-maintaining-a-healthy-system.aspx

Hope this helps!