I am gearing up to re-launch the Portas Aurora website. The site will not be for the original Portas Aurora: Arrival, but for a new game using the same IP. However, I want to add a more standard forum for the site. I have been looking at using phpBB forum and while it has fairly good reviews I was wondering what other developers were using. Additionally, any ideas or experiences with minimizing spammers are welcomed.
Edit: Simple Machine Forum is another management tool that I have seen rated highly.