Look for a guy on craigs list or ebay in a similar position as you but in reverse. Alway a good time to look for a good used bike is once triathlon season ends. Many wannabes race out and buy great bikes only to find their goals are less than achievable.
After a year they want to move their mistake.
When looking for a good used road bike, look for 10 speed tiagra or 105...nothing less.