My first race was in 2007 and lap 1 is absolutely incredible. It had rained early and many people were not in their seats yet so I watched lap 1-15 from the balcony right across from pole sitter Helios pit.

http://www.youtube.com/user/indycars

Indycar.com has loaded 344 videos to their youtube channel. There's some incredible stuff there. Much of which I have never seen. Old newsreels are really cool.