Hi Luciano,
Thanks for taking the time to post the links to that website, I was just about to get a copy of Every day practical electronics out and check the listings for a stockist of those fets, you have saved me the trouble. I will be ordering a few to test in my application. Out of interest what frequency would be best for DC motor control? At present I have set the HPWM frequency to 7000Hz to remove the noise from the motor windings. I am sure that I have read somewhere that the frequency of the mark to space ratio has a direct effect on the torque and efficiency of the motor.

Thanks for your help. Kind regards Nick