I added the RC filter that was suggested by Fran on the EVTech list. I put it right at the input of the A/D converter like Roger suggested. Thanks, Roger! I'm going to try and measure the current in sync with the pwm signal. That should give a more consistent current.
The Electric Cougar... Hmm... It will have that futuristic cougar growl from your motor too... yes... That would be good...