Thanks, first, to Thgeisel for sharing his water map setup. For those who missed the thread, go http://www.renderosity.com/messages.ez?ForumID=12356&Form.ShowMessage=888374

For the image I've used Thgeisel's setup......... Nerd's Backdrop prop and Dark Whisper's Princess Mandi. Still experimenting, but adding depth of field to the Firefly render is improving things further.

F-Stop is checked in this render. For the Focal distance I've found, as a rough rule of thumb, that adding 10 to the camera's Dolly Z distance (units in feet) gives a good result. F-Stop can then be set as desired with lower numbers giving shorter depth of field. In the image I used F-Stop 8. This nicely blurs the junction between the water plane and Nerd's prop.

Ian