Silverlight and .net

Just doing some test work on a Windows 2008 server and (re-)discovering how awesome Microsoft isn't. Try to watch video on their site, can't I need Silverlight. Is that available for Ubuntu? Not likely.. Ignore that and go to download/install mysql for windows, need to install .net 4.0 for the mysql server. Its hard work doing work in windows land. I so miss being able to 'apt-get install apache2 php5 mysql-server'.