Definitely not necessary but it would be nice to have some of the following MODs:

Facebook Profile Link
http://www.phpbb.com/customise/db/mod/f ... le_link_2/

Share Topic
http://www.phpbb.com/customise/db/mod/share_topic/
Great for getting more traffic to the site. It shares your topic[s] with a bunch of different social networking sites.

Post Count Requirements
http://www.phpbb.com/customise/db/mod/p ... uirements/
This one is good if you want to stop people from posting in certain places till they hit a certain amount of posts. Ideal for the marketplace.

Post Counter Minimum Characters Limit
http://www.phpbb.com/customise/db/mod/p ... ers_limit/
PERFECT for now while running the contest.

Show First Post Only to Guest
http://www.phpbb.com/customise/db/mod/s ... _to_guest/
Good for getting guests to register.

Twitter Profile Link
http://www.phpbb.com/customise/db/mod/t ... file_link/

Ban users by x warnings
http://www.phpbb.com/customise/db/mod/b ... _warnings/
Like vB's infraction system.

Thanks for sharing this, I will look into these as soon as possible. I wish I new about "Post Counter Minimum Characters Limit" before I started the contest. Oh well, live and learn. Thanks again.

Ah I wish I found this forum earlier. I could have told you about it. Forums are my forte.

Changes the default time online definition from 5 minutes, to 60 on the bottom who is online box and the ACP index. Basically makes your forum look more busy, lessening the amount of bouncing.
http://www.phpbbhacks.com/download/7585


Adds a picture on each of your forums. Looks way more appealing.
http://www.phpbbhacks.com/download/614


Allows users to delete their own accounts. It can be enabled/disabled from the admin control panel. So people can delete their account if they decide they won't be using it, instead of having a bunch of inactive accounts.
http://www.phpbbhacks.com/download/3565