Installing Rails on Windows (step-by-step tutorial)

I just found this superb 10 min tutorial on Installing Ruby on Gates.
In order to have a fully working development environment, you can use your PC. You will need to install:

1. Ruby - the language
2. Ruby Gems - the plug-in manager for Ruby
3. Scite or FreeRIDE - IDE for Ruby
4. or RADRAILS from Aptana - IDE for Rails
5. MySQL - the database
6. MySQL query builder / MySQL admin tools - GUI to create databases, add users and create tables
7. Rails Framework

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