Currently A Nikon D40 is my main camera because its my only camera. I had some film gear and sold all of it off a few years ago when I got out of the hobby . Then I got back into the hobby but digital had come of age this time around and I needed a camera. The D40 was in my budget, as much as I like some of the work I have done with it. I wish I had more camera, I am currently looking at trying to get a D200 or a D2 possibly. It just depends on what my finances will allow. Still the D40 has served me well and I can complain it has been a decent enough platform for me to learn digital cameras on.
Still loving the iPhone 4 for personal stills and also for video clips in social situations. Still using the Canon 5D classic with 24-105 f/4 IS zoom for most family snapshots. Just added a used Nikon D3x to the mix, which instantly supplanted my aging 2005 Nikon D2x body.