HyperSerialPort is a serial terminal application written specifically to assist developers in debugging their micrcontroller code. It was designed for Windows 7 and includes some usefull tools such as the Embedded Scripting Evaluator, Send Timed Characters, and External Trigger. See the forums for a tutorial on how to create an emulator on the Windows PC to communicate with your Arduino Mega. The emulator is written in Python and easy to understand. Website: www.hyperserialport.com