My new iMac is arriving today and after the purchase of my GX1 last week I would like to purchase some editing software. My first choices are Lightroom 4 and Aperture 3. I know both these offer organisational qualities as well as editing capabilities which would also come in handy. I'm not really looking into massively editing photos as in removing/adding items or objects, just something to be able to add the normal post processing options. What's everybody on here using?