For sale: 142-foot Trinity-class yacht. Asking price: $23.5 million. According to TheStreet.com, Key Biscayne-based hedge fund manager John Devaney is selling "Positive Carry" to help keep his $620 million fund at United Capital afloat. It is sinking due to woes in, you guessed it, the subprime mortgage market. The boat boasts a 42-inch plasma screen TV and an eight-person Jacuzzi.