I have an RRD FSW 96L (plus a couple of others) Awesome board for all-round sailing, it is fast on flat water, it bumps and jumps and does waves although i'm new to waves but it does 'em. Look at what is for sale, if you see something that you like, then go to the web page and research a bit.
Popular boards are RRD, Starboard, fanatic, JP, Tabou etc. Search the forums, speak to people on the beach. A bit also depends on your ability like can you waterstart or just uphaul.
Boards these day are easier to sail, they are a little bit wider, therefore more dance floor, they get up and boggie early, turn with ease and generally eat chop.. Be careful though, once you get this stuff in your veins, there's no cure but to sail and buy more stuff