Selecting Gurus to work with - are speakers' bureaus a possible partner?

I was thinking that people that call speakers' bureaus are usually planning a conference or an event. They might be looking for just a speech, but more and more might want something more interactive.

Some ideas:
- What if we crafted a special offer for speakers' bureaus to know that our demo workshop team is able to facilitate a live workshop session even with large groups - for each product we launch + for new topics that they are looking for - where we might be the partner of choice to ADD the interactive element after any guru holds his speech?
- What if we checked through them what topics are most wanted right now? Which gurus are most wanted for strategy, processes, etc.?
Here one example to look at:
http://www.speakers.co.uk/csaWeb/home. They have also a cool list of most wanted speakers....