A while back, I found a video (pretty sure it was youtube) about organizing tracks and preparing for a set. I thought it was done by a relatively big name (possibly Ean or Shiftee). It worked through the process from start to finish starting with collecting tracks into an itunes playlist that had a similar theme, putting them through mixed in key, and then into traktor.

Does this video sound familiar to anyone? Does anyone have a link to it?