First album I BOUGHT was
Chemical Brothers - Dig Your Own Hole. I was really into electronica and techno in those angsty highschool days (eh...).
Before that I sustained myself on my dad's CD collection - he has a huge collection of classic rock stuff - Pink Floyd, Uriah Heep, Alice Cooper, Black Sabbath, etc. Hell, even today I often find myself listening to them. I don't remember listening to the Chemical Brothers for a looong time now.