There are also a couple of good books
available that list the pros and cons of various types of catamarans so that you can determine which qualities are most important for the type of cruising you plan to do.
Unfortunately, I am not aboard right now so I can't just go to the bookshelft. One, I believe, is "Cruising on More Than One Hull". Also, Chuck Kanter, the multihull
guru, has a revised edition of his book (the name escapes me right now) that details a vast array of cats.
I am biased, but you might want to look at www.mantacatamarans.com.
We have a Manta
42 that is sturdy enough for ocean cruising.
Good luck on your search.