There is a new video on the DID YOU KNOW THAT THREAD that will show you how to pose your character using two major ZBrush PlugIns (Subtool Master and Transpose Master). Please FOLLOW THIS LINK to download the PlugIns. The video will also show how to use the two plugins together to quickly create multiple poses within ZBrush.
You can watch the video on ZBC here:
This will really give some ideas of how quickly you can pose a character within ZBrush using Transpose Lines. No rigging.