I'm planning to buy an iMac this month. I'm wondering, what is the default image viewer on the Mac, and is it just as good as Windows Picture and Fax Viewer?I've gotten so used to Picture and Fax Viewer on my WinXp machine, I would really like my new machine to work the same.Features I need:1. moving back and forth using left and right arrows2. moving back and forth using Back and Forward buttons on mouse3. ability to zoom in and out using scroll wheelI use Graphic Converter. It'll open just about any graphic file format, it also has many other features. You can probably find a torrent with a cracked version.