Some convenient Ruby on Rails Rails form builders.
To use them (for example, the LabeledFormBuilder), you first need to download the labeled_form_builder.rb script, and plonk it into the Rails application's lib/ directory. (You can put it in another directory, such as app/forms - but you will have to add that directory to the load paths in the environment).
Then you simply create a form in your ERB template with
<% form_for @model, :builder => LabeledFormBuilder do |f| %>
<%= f.text_field :name %>
<%= f.text_area :description %>
<% end %>