Mac OS X: spent a whole week writing a 10-line kernel extension. How elite I am.
Geek stuff: started using xplanet. Ubercool ! Now I know when the day is dawning without having to open the curtains. How elite I am.
Leisure: saw 2001: A Space Odissey on a 250 sqare meter screen. A breathtaking experience (the sound was set a bit loud, though).