this must have been fucking awesome...I got chills watching the video, I certainly would have lost my shit if I had been there...
Check out the coverage of Lollapalooza at Live Music Blog.
Scotty B at Hidden Track has his (now traditional) post festy YouTube list.
I recommend watching a Chromeo video. Hilarious/Bad/ Awesome/Danceable/Amazing is what I first thought when I saw the Chromeo webcast.