Question: Can I deploy BES and BES Express with Exchange 2010? Any tips for doing this if possible?

Background: We have a lot of users with personal BlackBerry's and we would like to allow them to start using their devices for receviing corporate email. We don't need full BES features for these users, just the ability to enforce passwords and remotely wipe. Plus users have never wanted to upgrade their data plans to the more expensive BES plans. So BES Express is a great fit.

We already have an existing BES, for corporate owned BB's. We want to keep this as is allows us to enforce several policies, not available on BES Express.