Watch the Bending and Inflections online guitar lesson by Angus Clark from Focus On: British Metal
Make sure that you know how to bend in tune, and that your vibrato isn't just you playing sharp. If these are problem spots for you then stop right here and get it together. If you can't bend in tune and your vibrato is really just you playing sharp then anything else you learn in this course will still sound terrible. Tough love people.
The rest of the stuff is all good fun. Some of it may seem rudimentary, but when was the last time you practice your trills? I thought so.