BitComet Turbo Accelerator - description from developer:
BitComet Turbo Accelerator is an effective plug-in for BitComet P2P. The program includes most modern technology that is used to increase speed of BitComet downloads. Also the number of your download sources will be improved - you can have more seeds available than normally revealed by your BitComet. Interface is beautiful and easy to use. Application is FREE and there are NO Ads, NO Adware, NO Spyware, NO Trojans bundled. A must-have utility for all BitComet users.
Finished and wrong files are cleaned automatically;
Finds more sources at user-specified intervals;
Interface is good-looking and easy operable by a system tray icon;
Automatically resumes paused downloads;
Configuration from last run is saved and auto loads on start-up;
Clean and free.
BitComet Turbo Accelerator is a "Free to try" program. You can download and try it for an evaluation period.