Advise on and Setup a Hosted Exchange 2010 server

We want to implement an Exchange 2010 to offer Hosted exchange to our clients. We don't want a huge server, but would like some web front end for mailbox configuration. This isn't something we've done before, so we're sourcing an expert to advise on how we need to approach this and ultimately, configure the device. We're easy people to work with and very IT Savvy, but we just lack the knowledge on Shared Exchange Hosting environments. Let us know what you can offer us with a PM .. Thanks all you great freelancers.!!