iTunes 4.5

Everyone’s talking about itunes 4.5, primarily changes in drm limitations and itms integration. I just installed today, i’m somewhat hesitant to upgrade apple software instantly cause it looks like they have some serious problems with their qa. As two recent examples come airport 3.4 and the latest ipod update to mind.
There’s a lot of hints, tips and reviews around the web recently, i’ll update this list with new links as i find them.