Many thanks indeed guys.
Yep I'd discovered the cat is about 1K more expensive but as our Son is now 6 ft 2" and 17 yrs (so possibly may get taller) I definitely think the space inside the main and sleeping cabins will be worth it.
I'll pass on your suggestion about hiring a skipper as that sounds like a great idea.
Back to the research it is then <img src="http://www.traveltalkonline.com/forums/images/graemlins/Laugh.gif" alt="" />
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