Enterprise Service Bus Messaging Using nServiceBus

I have been working lately with a big group of fellow developers here in SilverKey on the architecture and design of a relatively big project that required much services and messaging work. We thought that we should implement our public services the REST way using WCF for .NET 3.5, with so many customizations, and that we'll use a library called nServiceBus for internal messaging. nServiceBus is a framework for handling publisher/subscriber (pub/sub) model of messaging. It provides reliable messaging via the Enterprise Service Bus (ESB) pattern, and uses MSMQ as the physical bus.