Atlassian Stimulus Package
http://www.atlassian.com/starter/

Can get 10 user licenses of JIRA, Confluence or Bamboo for $10 each.

Our best tools are just $10 per product. Perfect for startups and small teams.

Jira - bug tracking Greenhopper - jira agile plugin confluence- wiki fisheye- version tracker

Start-up priced software from Atlassian - $10.