Disk images - to be or not to be BIG AND FAT

Disk images are great - especially sparse bundles as they allow you to grow your space. However, there is no direct way to tell the system to compact the images to free up space gained from file deletion from within the image.

Found this: http://www.macworld.com/article/58547/2007/06/compactsparse.html article which shows you how to do just that!