I've uploaded four more Windows 7 theme packs, adding to the D.C. theme I posted the other day. Here's what's available:
You can find out more about creating your own Theme Packs in the updated version of my Windows 7 Feature Focus article, Styles and Desktop Slide Shows.
UPDATE: I've apparently exceeded Box.net's bandwidth allotment. I am uploading the theme packs to my SkyDrive Public folder. Hopefully that will work better.