Hi thanks for the response so quick, other than the flash videos do you have a link to the install documentation so I can have a read of that also?
I'd probably not be able to seperate Exchange and the DC other than using another VM as I only have 1 box up to the task so can either go with Server2003 SP2 + 2x VM's 1 running BES and 1 running 2003/Exchange which would not be ideal from a performance and RAM point of view so I may just give it a go with SBS see how I get on.
As for the POP connector, it's not great but this is just a test and I can't be bothered with changing MX's right now although if the results of the test are positive I'll have the addresses changed over and be done with the POP connector. It's only one account so nice and straightforward to setup, no one-to-many/many-to-many pop accounts to worry about.
I'll start another thread next time, found the old one in a forum search and didn't notice how old it was