Take a look at this ground breaking concept boat which will be released next year. The outboard engines are hidden inside the boat out of site ;) and out of the way from fishing lines, although used on a cabin cruiser it is good idea for fishing boats. ;D
Here is the link
http://www.boattest.com/boats/boat_video.aspx?id=2752
and some videos:
http://www.youtube.com/watch?v=t2sYl8OLEEk
http://www.youtube.com/watch?NR=1&feature=endscreen&v=wtROnWMokQo
I remember that Boat Test Video, I thought it was just a concept but it seems Searay are going ahead with the idea. It's a testament to the efficiency advantages that outboards have over Z-Drives, yet extremely surprising to see on a 37 foot cruiser!
Outboards are the future for boating even up to 40ft