For partners who want to provide a 3rd party perspective on Microsoft products at their events, you(for partners in the US East Region only, right now). now have the opportunity to engage Microsoft MVP's (http://mvp.support.microsoft.com/).

The MVP's are very talented individuals who are "raving fans" about Microsoft products and technologies.

They've earned their stripes by participating in TechNet Forums and other ways of demonstrating their knowledge. And, they are EAGER to share their expertise and passion.

To engage one for your event, contact your local Microsoft marketing person

Odds are, your MVP will be just fine, but just take the time to make sure it's a good fit.

So, here are some suggestions based on MVP's engaged in partner-led events to date...

1. Vet the MVP's ability to present. 
   Just because someone is good on a blog, doesn't mean they are great presenters.
   
2. Review the schedule.
   Make sure the MVP knows the game plan AND the objective for your event.
   
3. Meet in Person
   Personal appearance matters. Will the MVP reinforce your brand or hurt it?
   
4. Provide Feedback
   If an MVP is great, we want to know. If not, we also want to know. Honesty's the best policy!

These are basic caveats, of course, but worth repeating.

If you do land an MVP for an event, consider yourself lucky. These are very knowledgeable people (and a limited resource). And good luck at your next event!