Basically my own flavor of a starting app, utilizing authlogic for authentication, cancan for authorization rspec / cucumber for testing.
It also includes the usual rspec matchers in the plugins.
Example:
rails galatea -m http://github.com/cyx/rails-templates/raw/master/jumpstart.rb
# Lots of output here
=========================
Specify the Project Name:
galatea # hit enter
...
...
applied http://github.com/cyx/rails-templates/raw/master/jumpstart.rb
Probably the most compelling reason to use this is for the pre-built authlogic controllers and models, but of course it's built for my taste.