I've made some big updates to the Thematic Options Theme I released a few months ago. You can now select your layout (2-col, 3-col, etc), use the ajax image uploader, and set the footer text. There's also a bunch of other minor improvements.
For people who haven't seen the theme yet, there's detailed instructions for how to add your own theme options for child themes.
I'd appreciate people's feedback on it. I'm also wondering if people would rather have this as a plug-in, or if I should keep it as is.