I have finally completed the unexpectedly epic struggle to get a video of one of my improvised performances up on the net. *whew* First I had to covert the iDVD movie my student graciously gave me into mp4 format with new software just for that purpose. Then I needed to split it in two so I could separate my performance from my student Vashti's drum solo. That meant going through 3 more pieces of software until finally using iMovie (with much struggle). If you should ever find yourself about to embark on this journey, learn from my efforts. YouTube has a handbook with all sorts of useful information about file size, format, camera angles, lighting, uploading, etc. IMovie works with iPhoto. Import your newly converted mp4 file into iPhoto and then you have easy access to it in iMovie. You can copy/paste the selected section of the clip that you want into a new project and then in the Share menu you can select a number of options including YouTube.