You can now attach JPG files to posts ... I'm working on other file types like PDF, doc. The size limit is 8 MB and it automatically makes the thumbnails so you probably don't have to worry about resizing or anything
Over the past few days I've added some features, in order of descending coolness
1 - you can rate pictures and videos
2 - you can schedule reminders for events (just view the event details and you'll see the little form)
3 - pictures show the EXIF info ... which is only useful if you're a photography nut like me
4 - for pictures, it gives you the bb code for the thumbnail & the larger version so you can pick which one when you post the pictures on other websites