At least I can size the chat font up. I was hoping there was a way to increase the font size of the quest dialogs. The window has a scrollbar, so there shouldn't be a problem with just making the font bigger and extending the scroll.
I had hoped that Moria would open up a lot of UI possibilities. There's no need to go as far as WoW, but the UI customization is pretty much the one thing I miss about that game.