5x5 would be an excellent choice my friend. My legs gained so much size that they couldnt fit in my jeans after I finished 12 weeks of 5x5. Some advise use the intermediate program, follow it by the book and use it as long as possible. Dont think its over at week 9 because madcow stopped there in his original post. If its still working than keep doing it. I did 2 rounds of 5x5 and gained tremendous strength and size imo one of the best programs out there.