My current focus on configuring the site lies in WYSIWYG editing. I may expand on this later, but I think I'm pretty set on using FCKeditor for the actual user interface, and the editor-specific FCKeditor module (documented in more detail here) for the interface to Drupal. My main annoyance with this configuration (which is something that the more generalized WYSIWYG module handles much better) is in linking editor mode to Drupal's built-in HTML filtering. However, I just found a Better Formats module that I may be able to configure to my satisfaction. If I can just tie both preferred input format and editor mode to user role, I think I can take full advantage of FCKeditor's flexibility without giving up control of HTML formatting to untrusted users. Hopefully, I'll find time to tinker with this combination tonight.
In other news, I have the Gallery script (as well as the Gallery module for integration with Drupal) installed, not that I've actually posted anything yet. It looks like the default configuration will be secure enough to keep the gallery from being taken over by comment spammers, at least until I find time to work with the setup in more detail.