I'm thinking about getting a mac mini because of the iApps that are included, especially the iMovie HD. I want to use it to create a 10-minute HD film using a mixture of both images, text, and clips. Now, is it possible to do effects on images, such as zooming in on a particular part of the image. Also, can you do effects with text? Finally, working on a 10 minute HD documentary with the standard 512mb RAM (the low end $500 edition), will there be much lag while using this program?