I've been asked to investigate the pros and cons of an exchange 2010 upgrade. We're currently running exchange 2003 in house for around 100 users with a surf cotnrol email filter on the front end along with a BES for our Blackberry users. We have an experienced IT staff who could perform the upgrade and manage the email server but at the same time the industry seems to be trending hard towards hosted solutions for communications.
I'm looking for feedback from others in the same situation. Is it still cost effective to host an exchange server in house? Does it make more sense for a SMB to go with a hosted email soluition? Let me know your thoughts and please let me know if there is any further info I could provide that would help make a decision.