Awesome! I was truly expecting this question to remain unanswered. I will relate with Tony in that I got my start in the scene back in the late 80's/early 90's when calling around BBS's on my Atari 8-bit. It's amazing what people can do with assembly and serious know-how on a 1.79MHz 8-bit machine. I got hooked up with some local sceners who were also into the PC scene.
One of the most influential people I've met was White Shadow / Renaissance. I met him right at the time he released DoWackaDo, which was a production that astounded me. It ran full framerate on his 286 12MHz with MOD music, animation, and hardware tricks to extract more colors than normally possible. Unfortunately, those hardware tricks keep it from being recorded to video, so I can't find it online. Though, it is on the Mind Candy Vol 1 DVD.
Will anyone here be planning to visit Block Party in 2009?
BlaM: I have to agree with you to a point. Nothing is basic. Compare the latest party winning demos with those of around 1993. Second Reality was hailed as one of the demoscene's greatest productions, but now it looks like poo compared to Debris. Phong shaders and polygon intersection are child's play compared to now. Moreover, it's all about design, but unfortunately demos that focus primarily on that are not as exciting to most coders.