<A target="_blank" href="http://www.pcworld.com/businesscenter/article/231379/office_365_by_the_numbers_is_it_a_good_value.html#tk.rss_news">If you were to host your own Office 365 servers - what would be the cost?</A> How many servers, what software, how many people? How would that compare to $72 per person, per year, Microsoft is charging?