We only have 1 Windows Server 2008 server that is ancient in relative computer terms, basically only used for more secure file storage for sesntive information, we have 1 company public nas for our company that is used heavily but that requires no administration. No virtual hosts, whenever I get time around to rebuild the server I will play with the idea of virtual servers for different functions (I want to implement a opensource crm or erp system but I rather run them virtually). I may think about running exchange on the server whenever it is rebuilt.
Our network is pretty simple Router -> 48 port gigabit switch - > 24 port 10/100 switch (will be replaced when I get the time to to another identical 48 port gigabit switch). Most of the network is gigabit, the people who did the networking for the building did a great job. I am blessed to work at a company were most people are pretty smart, we make optical elements for laser systems so most people are science people. This is our website
www.optigrate.com . It def needs some work, I maintain it but I want to switch to a real CMS platform just for the sake of getting up to date. Also thinking of something like sharepoint for our company but really not sure, I hate using paid business software because of the price, rather keep it open source.
I had some simple fun projects so far, I set up a off-site storage back up. Basically had our CEO set up a nas at his house and set up a openvpn server and have our windows server synch nightly with the offsite nas. Something so simple that only cost maybe $1,000 would cost maybe that same amount yearly from other vendors. Also about to set up our time clocking system, thinking about setting up a simple mysql database to sync with our time clock system as our companies first test with databases for operational purposes. Currently we we are using mainly excel files for documents which is really a horrible system to go on but its what they were on when I get there. We sometime run into issues with excel files being treated like a database (excel files can bloat up from 5 mb to 1 gb sometimes from being shared workbooks). It's just so hard to transition a company from such a older style of data management to something new.