A few emails didn't manage to make it with me on my recent trip, so I forgot to mention Catapult has been updated for Aperture 3.0 in my last software update list. Now in version 1.0.7, Catapult allows for a very unique and desirable workflow for Nikon users: you can round trip NEF files to Capture NX2 and back and thus still manage them with Aperture's usual library functions. This is unlike the Lightroom/NX2 experience, where you have to jump through hoops and do manual labor to use NX2 as your raw converter and Lightroom as your library browser. The most recent update also improves compatibility with DxO sidecar files as well as NX2's.