Hi to all Mac, Aperture and CS3 users - I've not long been using the new Aperture 2.1 program and I do not know if many others use this combination but I thought you might like to know that it seams perfectly with Photoshop CS3.
I have only just discovered this - I know, call me thick if you already have found out - but if you look under the "image" heading there is a part headed "Edit with" - and in there I placed CS3 through the preferences. It now switches from Aperture to CS3 with no problem - edit or "play" and then press save and the image is automatically added to the Aperture Vault. I never seemed to be able to manage this with Aperture 1 - having to save things to the desktop and then importing them into Aperture.
Hope this helps - Andy