Where are you located, and where will you be sailing? I would say, contact a local Cat Fleet and try to get out on some boats with people that know how to sail them, and then take the helm yourself to get a feel for the differences. Cats are not as easy to sail as monohulls, but once you get the basics down, are unbelievably fun! Also Cat sailors are as a rule, incredibly generous about answering questions, and teaching newbies! If you really get serious about it, buy Rick and Mary's book, and the first video! Be forwarned cat sailing is addictive, and if you are not careful, you will find yourself part of the cult! Of course your new mates will be some of the nicest most generous people you have ever met.