BuddyPress.org

[blockquote]Jeff, yes, I like MAMP, but also wanted to avoid creating lots of copies of Apache and php et al – and I want to run on port 80 anyway…[/blockquote]

I have a single Apache/PHP install (the default MAMP version) and simply use Apache’s virtual host directive to host 9 different WordPress development sites locally. They all have their own test domain (they do not use “localhost”), and they use the default Apache port (80) and MySQL port (3306). It’s simple to set up and manage. This is done with MAMP not MAMP Pro. If you don’t know how to do this, then MAMP Pro will do it for you.