Moving to an Open source environment

[James McDonald]

I am starting to get tired of spending 11000 (Exchange EE) + HARDWARE + 
OS + AV to give people email, when I can do it with a linux/qmail/imap 
install for about a days wages. However some small points seem to stop 
me from recommending an open source only solution.

    To completely replace M$ I would need non-buggy group calendaring 
and scheduling apps that runs on Linux and is rock solid. Any Suggestions?
    There are a lot of helpdesk applications on sf.net but a lot of them 
are on the immature side. What are list members using to track support 
calls and resolution / kb sort of stuff?
    Another area that seems to be lacking on the linux front is Safety 
Management Software anyone got any experience with this from the 
OpenSource world?

Just thinking...