I just paid for Quick Time Pro . . . again. I hate paying again. But I need the pro features to work with version 7. And I am looking forward to test driving the new H.264 codec. I have been using Quicktime Pro for 5 years. Its amazing what you can do with just QT - perfect for editing those movie trailers.
The biggest challenge i have now is demuxing my video from my small camera footage. I was using bbDEMUX but have had difficulties with it. I just downloaded FFmpegX and will probably use it for demuxing and muxing in the future. Powerful program.