You don't have to buy anything!
Everything you need to run Alpha is available to download for free after Alpha leaders create an Alpha. Hosts and helpers have access to all the resources when Alpha leaders add them as team members.
If you really prefer a hardcopy DVD or books, here are some resources that you can purchase through Amazon.ca, Parasource or your local Christian bookstore.
Alpha Film Series DVD | Approx $60.00 Cdn
Alpha Team Guide | Approx $12.00 Cdn
Alpha Guest Guide | Approx $12.00 Cdn
Alpha Youth Series Discussion Guide | Approx $12.00 Cdn