My main interest is actually in sports and wildlife photography.
I have been shooting such pics but wish to upgrade myself.
Are there any courses / instructors who can bring me to the next level?
Some of my newbie pics here:

Sports
http://s5.photobucket.com/albums/y151/JkChan/Sports/


Wildlife
http://s5.photobucket.com/albums/y151/JkChan/Wildlife/