So, I’ve been looking for a WordPress event calendar plugin, and while I found the Event Calendar 3 plug-in, I wasn’t happy with it. It does not support multiple day events, recurring events, etc. I found PHPiCalendar, but that only reads in iCal files, and is not integrated into WordPress, except through a plugin which gave me a number of errors on WordPress 2.0.2.
I then turned back to EasyPHPCalendar which I have used before. It is commercial software ($19.95 and up depending on options), but well worth the price as I have not found ANY open source software that comes close to it in terms of features. I am integrating it into WordPress now and will give you an update on my progress.