At my wit's end with iTunes and damn-near ready to throw my MacBook out the window. This has gone on for over a month now, there have been several trips to the "Genius" Bar and no one has come close to helping me resolve. I've written on Apple-related forums and no resolution there, either. To say iTunes is painfully slow is as gross an understatement I could make. CPU% shoots up to about 101.5 anytime I perform any action—trying to play a song, dragging into a playlist, attempting to edit a song title. Uploading a CD takes up to 15 minutes and the spinning rainbow beach ball of death is in effect more than it's not. When I do play a song, takes a good :30 before the song title / artists pop-up box shows up. Apple techs had no answer for me; outside of suggesting I rebuild my library. Ho hum. 26K songs and 300 playlists. Let me get right on that. Furthermore, they said there "might" be a corrupt file, but let me know that this rebuild could go a long way in solving nothing. Thanks for the disclaimer. Seems like a universal issue a lot of folks are having and until there's an iTunes update, everyone just has to deal with it. That said, wondered if anyone had any clean-up tips. Maybe there is a corrupt file. Maybe there is something fixable that it taxing the hell out of my system. Either way, on the verge of losing it. Can't even sync my phone. Gets stuck on the Transferring Purchases (Step 4 of 7) for a half hour, before it crashes or pushes through.