with the Kurt Hughes 30D this is my favourite cat http://www.tennantdesign.co.nz/index.php?page=turissimo---10-mk-2
nice, very similar to the Kurt Hughes 30D I think using Cylinder moulding method, and without the pod it's possible to make a cheaper boat
I like Kurt Hughes 30' demountable cat http://www.multihulldesigns.com/designs_stock/30tcat.html