No more iDVD with Lion, so how do I get my slideshow, which I worked on intensely for over 40 hours, onto a DVD?

Worked intensely in a slide show with audio for my daughter's upcoming graduation. The photo scenes are timed and choreographed perfectly with the music audio track. However, when I export to an "intermediate" "Movie" form, the show is cut from 12:26 to 12:11 in length. I purchased an app from the app store to burn the "movie" onto a dvd, and noticed right off that the music was no longer in sync with the photos, which I worked like a dog to accomplish. HOW can I simply take my slideshow, which is on iPhoto and get it AS IS onto a DVD to share with others? NEED YOUR HELP. I'm VERY frustrated! WHY did they have to drop iDVD? Is there anything else that does what that did? Convert your slideshows into DVDs with the touch of one button?