Check out the Toyota Epic v-drives: S22 and SX22. They have a Lexus V8 (the same one used in the LS auto). It uses a fraction of the gas used in any other boat, which means lower operating costs.
Toyota made boats from 99-02. Don't confuse the Toyota Epic with the new Epic Wakeboat using the same name. They have nothing to do with each other.
Toyota Epics are very high quality (what you'd expect from Toyota/Lexus). They are holding their value extremely well, mine has only depreciated a couple of hundred dollars since I bought it three years ago. Many used Toyota Epics are priced reasonably. To learn more go to:
www.epicmarine.com.