Balsmiq is simply a quick way of drawing out your idea and is easy to pickup and put down. When you launch Balsmiq, your previous "Mockups" are ready and waiting.
Its great for mapping out a system diagram, but excellent for application/web development. Each item you add to the page has a "Link" function will allows you to link this to another mockup. This means that you can mockup a website then when you preview it, all of the links work and take you to other pages. The beauty of it is that you do not have to be a web developer great a mockup. We find it very useful to plan our ideas and then hand our mockups over for them to develop.
It can be a little particular here and there. Adding an image or a block of text to the mockup can be a tad confusing as its not entirely obvious from the icons that it is what you want.
Also when you put it in full screen, it really means full screen. So add a little bit of padding around your image if you want to be able to see everything.
If you have the time and already have Powerpoint installed and licensed, have a play with its storyboarding functionality. If it doesn't do the trick, definitely check out Balsamiq.
Wireframing of our systems and mockups of our websites. The key benefit is that it makes is much easier to collaborate on your projects.