The last two posters really gave you some good info. I’ll post here just to second and confirm some of their points. Just to give you an idea of where I’m coming from, I’ve been paddling regularly for the last 5 years (30-40 miles per week right now) and racing competivitely for the last two.
For your first board, used is difinitely the way to go. The best resource around is Mike Eaton’s website. He hosts a “used board” page were paddlers all over the mainland and Hawaii post their boards to sell. I’ve bought and sold a handful of my boards through this site in the past and just like afoaf, I’ve sold boards for the same or close to what I paid for them.
Depending upon your size and weight, I would recommend you go for a stock (12’) or 14’. The unlimited boards (usually 17’-19’) are awesome (I mostly race an 18’6") but are a pain to transport, store, etc. They are also considerably more expensive. If you needed another reason to avoid them, they’re not as user friendly in rough conditions (until you begin to master them). On the otherhand, if you have the room and plan to use it in mostly calm conditions, then an unlimited board is great for the speed. You can log some serious milage.
If you’re a bigger guy, say over 180 lbs. then you need to be careful about the board you choose. Many stock boards and some 14’s are made for smaller (or at least lighter) guys, so ask folks about their size/weight before buying a used board.
I think a 14’ is the perfect “one board quiver” if you’re not going to race. It’s still small enough to make it easy to store and transport. It glides like a big board but will catch and ride bumps like a stock board. I occasionally race a 14’ that I really enjoy a lot.
The Bark surftech boards are a nice option. They’re cheaper than handmade boards, more durable and are very stable. They tend to run thicker so they work well for a bigger guy. They’re pretty easy to come by used.
Like the other posters said, there are a handful of other shapers in the game besides Bark and Eaton. Depending upon where you’re located you might come across Richmond, Ohana, NCP, Waterman, Dolphin or a number of others. In Hawaii, there’s tons more. All of them have their own followings.
-N.