That should be fine, im using a windows 2000 server. 20.5 gb on 2 slave hard drives and 40 gb on a master drive. Try Ubuntu, very nice feel, very easy to install things. There is a program called synaptic package managaer, it has about 1000 different programs you can download on it. After about 20 minutes I had Mysql and Php5, mysql isnt working though.