Interconnected

Question: Suppose I wanted a digital camera, and suppose I wanted it to work with my Mac and with PCs, and have quality comparable to my regular pocket camera (an Ixus). Also suppose that I didn't want the best camera in the world, but a decent one I could use most of the time, and I didn't want to end up with a cheap one (or, worse, bad quality but expensive).

Now suppose I know bugger all about digital cameras. Hypothetically, what would you advise me to get? Or even would you have any hints? Okay, now write down those valuable nuggets of wisdom, and email them to me. Ta!