Pre-installed Linux for Web Developers?

Does anybody know an ISO image of a up-to-date Linux distribution aimed at web developers with one, some or all of the following features:

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  LAMP stack readily set up (Readily installed Apache 2, virtual sites directory structure (hosting), PHP installed, mySQL installed)
  

  
  


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  Ruby/RoR set up for a beginner to start with
  

  
  


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  Subversion set up for multiple repositories
  

  
  


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  Firewall configured for functioning as a web server (Port 80 open, not much else)
  

  
  


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  Python and Trac installed and integrated with Apache (Multi-environment capable)
  

  
  

Background:

I have a powerful new workstation and would like to set up a number of virtual machines for testing, development and version control, preferably on Linux. The machines will not be exposed to the public.

I would like to save as much installation and set up work as possible - setting up everything from the above list would cost me weeks if I'd do it alone.

Bounty

I have had to put this on the shelf for the time being due to other, more pressing projects. The suggestions made are already a brilliant list; I'm putting a bounty on the question to try and gather as much input as possible, so this can be the reference question on the issue for future generations.

I will be awarding the bounty either based on popular vote or on a whim, from what looks the best solution to me.

Source: Tips4all