Aperture -> batch edit: pad so all images are squares -> quicktime.
Aperture > Select All Images you want > Export.. I sized them all as < 1024x1024 jpgs. I also had it name them 2008 n+1.jpg. It's a feature I saw in aperture's export wizard, incremental extension.
Here, I think Aperture could have done this part for me, but I had already let it take the hours it took to convert every picture to jpg and export without. So I ran a quick command line script to batch pad every image. Essentially, make my portraits have black padding on the sides (to 1024 width) and my landscapes black padding on the top and bottom (to 1024 tall).
That put the pictures in a folder in order nicely and avoided some distortion if they weren't the same sizes.
Lastly Quicktime > File > Import Image Sequence. Picked 10 FPS. It basically spit out a movie (into quicktime). Now, here's where I wanted to use more a movie editor, but unbelievably, this movie when exported /from/ quicktime, in all sorts of formats, wouldn't import into iMovie. That's how I would have done it. Instead though, I found it very easy to add audio tracks to an existing movie right in Quicktime. Open audio file in quicktime, select all, copy, switch to movie, position where you want audio to start on the timeline, paste/Add to Movie. So I just had the audio files lined up, and inserted 1, played through, and stopped where I wanted the next audio to start, etc.
One trick is to save the video to an M-JPEG (not mpeg) file after you get the sequences in. It's really the only compression that looks good while you're still working. My "final" yet original quality movie is about 4gb. The one I uploaded to FB, was 400mb, because I had to keep the compression bitrates for mpeg4 very high. Timelapse, given the differences between frame, does not lend itself well to motion based compression.