multisite - Replicate network plugins without having to configure it for each subsite? in WordPress

I've had to write some custom stuff to copy settings across blogs. Currently I've got a plugin with two textareas:

1. A read-only box with a base64 encoded serialized string of all the blog options ( wp_options ) I care about (in this case, widgets, sidebars, and options from a specific plugin )
2. A field that can accept the same encoded string copied from another blog

So, I don know of a good way besides dumping the data via WordPress's get_option() or SQL queries, and loading the data back in on another database.