I joined the Forums for the purpose of posting this thank you to Mark for showing how to set up a custom directory structure for importing photos! (See Tips & Tricks or www.lightroomforums.net/showthread.php?t=3989.) This seemed like the most appropriate forum.
I've used Breeze's excellent Downloader Pro for five years and I have a well-established directory structure I don't want to abandon. I'm starting a switch to Macintosh, though, which means I'll have to change to Image Ingester or something else for directory building. Why couldn't Lightroom just support a broader array of directory structures? Well, it does! I just needed Mark to show me how to do it.