I am also currently studying for my first MCP. I have the transcender practice exams for some of the courses. I am way to cheap and broke for any other options but found someone who gave me their copies since he was finished with them. My plan is to take the practice exams and then track the missed questions. Look up and experiment with the solution and then retake the exam. When I can finish multiple practice exams without missing a question then I will be ready to put the money down for the real test. While this will be a very slow process it is the one my friend successfully employed.

Falcis