I am about to push out some updates to the "Thematic Options" theme early May.
1) An option to select the layout (2-col-left,2-col-right, 3-col, etc)
2) An option to upload a logo
3) An option to add google analytics
4) An option to change the footer text
What's really cool though, is it's very easy to add your own options. Again, see the post for a description of how it works: http://wptheming.com/2009/10/thematic-theme-options-panel/
I'm not very skilled at making plug-ins, so I got a quote from another developer who's willing to convert this over- and I'm wondering if I should move forward on it. We could probably get this in by the time 3.0 is launched.
I envision the plug-in having a basic set of options, which you could then hook into from your child theme. It would include the options right now + some typography and background settings.
Chris, perhaps you could e-mail me directly [devin at wordpresstheming.com] to discuss the particulars and perhaps get commit access to push out the first version.
For anyone who's interested in checking out the latest version of the theme, you can get to get it via svn at: https://thematic-child-options.googlecode.com/svn/trunk/