I understand how you feel about waiting for a response here. We let our desire to see the community respond to your post, and the timing of the holidays, get in the way of helping you use Podner effectively.
Here's our advice:
A few days before your post we provided a detailed explanation of each Encoding and Quality setting in response to another user's question. I think that's some good background info for answering your question. If you haven't already, please take a look at
http://www.splasm.com/forum/viewtopic.php?t=122 .
Now, you don't have to export from iMovie to a temporary file at all, which opens up some of Podner's performance enhancements for you to enjoy without much fuss. The key is iMovie stores your project in a QuickTime reference movie, which Podner can handle directly. Find the reference movie and you're in business.
If you have iMovie HD, the reference movie is available by Control-clicking the project file and selecting Show Package Contents from the menu that appears. Inside, you will see a folder named Cache. Open that folder and inside you will see a movie file named Timeline.mov. Drag that file to Podner and you're set.
If you have an older version of iMovie, the reference movie is alongside the project file inside the project folder, and should be named similarly to the project itself. If the project is named "Test Project" then the reference movie will be named "Test Project.mov". You should be able to drag that file to Podner and process as usual.
The image quality and data size with iMovie's Movie to iPod option is almost identical to Podner's 320x240, H.264 MultiPass Encoding with Quality set to Best. While Podner's processing time for iMovie projects will generally be similar, as well, some simple iMovie projects will see the same performance enhancements as with regular movie files. Regardless, iMovie's Movie to iPod option is the slowest possible way to export iPod-compatible videos. You can usually get away with our standard recommendation of MPEG-4, 320x240, at Better or Best Quality, and see your videos processed in a quarter of the time or less. There's some potential for somewhat decreased image quality, but our recent MPEG-4 improvements continue to amaze us when held up against H.264 output. Please give it a shot and let everyone know your results.