You should get into content creation. Look into using:
Excessive GIMP sessions both with photography and artwork
(pay to use)
Adobe products (CS4/5)
Just to name a few things... if none of that floats your boat I suggest the following:
Install VBox or VMWare ;
Then install lots of different flavors of Linux and any Windows versions you might have including MS's recent free
beta of Windows Thin PC;
Then try to learn everything you can and/or visit the dirtiest parts of the internet and see how badly you can get infected in Windows versus Linux. Then see how good you are at removing the viruses.
Those be my suggestions.