Turn Primary Link area into a block

Thanks for a great theme!

I've installed Nice Menus (as it's the easiest way to provide drop-down menus until suckerfish is implemented as a module), but as you may know, Nice Menus only works from blocks...
How can I get Nice Menus to run from the Primary Menu location?
The best I can do is set Nice Menus to use Primary menus for content and do them as drop downs but can only put them into the header block region.

Thanks for your help.