Kivio mp for Mac

From theKompany.com:

Chart your office, diagram your work, and map your thoughts with this premiere flowcharting and diagramming tool. Kivio mp is a full-featured application for creating flowcharts and diagrams -- a perfect tool to assist anyone who wants to organize their thoughts and workflow. There are over 30 diverse stencils included for everything from mind-mapping to chemistry and electronics. Kivio mp is simple to use and extend -- and best of all, versions for both Windows, Mac OS X and Linux are included!

Features

51 page sizes and formats.
Dynamically loadable stencils. Stencils support various attributes such as:

Border width
Foreground color
Fill Style
Gradient
Solid
Pattern
Pixmap
Arrow heads
Text
Generic vector drawing tools. Includes the following tools:

Rectangles (with rounded corner)
Arc/ellipse/pie
Text
Bézier curve
Connector
Intelligent toolbars that present you with the right tools when you need them.
31 types of arrow points with separated size/color values.
Multiple pages per document. Organize your document according to your own needs. No need to be locked to a single canvas.
Master pages. Create templates to use and reuse for your diagrams and flowcharts.
WYSIWYG printing.
Multiple measurement units for all values and value types.
Grouping. Select any stencils you want, and group them into a single element for easier manipulation.
Full clipboard support (cut/copy/paste/duplicate).
Drag and drop support.
Object inspector.
Clipboard history. Paste previously copied stencils!
Layer support. Stencils can be laid out on different layers for easier organization. Stencils also default to specific layers. For example, if you are laying out a floor plan, furniture goes on one layer, while walls and structural shapes go on another, and wiring on yet another.
Customizable helper lines. Having a hard time getting your stencils to align properly? Drag a helper line out onto the document and your stencils will snap to it.
C++ Plugin interface.
Customizable user interface. If you do not like the layout of the screen by default, drag the various elements around until you are satisfied. Some elements even allow you to change their colors for a more pleasing look.
Dynamically resizing grid. As you zoom in further and further on a document, the grid will constantly refine itself to allow you to place your stencils with more precision.
Guide lines. Organize and lay out your flowcharts and diagrams with guide lines -- even diagonal ones.
NURBS drawing tool
Pentagonal drawing tool
Smart non-linear connectors