I loved Romance of the Three Kingdoms, and while I was in China, I bought the entire set of the series on DVD. Granted, I never finished watching them, but it's a pretty extensive series from the 90's, and is about 21 DVD's.
All four great classics? Nice... I've read Romance of the Three Kingdoms and while I appreciate it and its complexity, it's too heavy with battles and political scheming for me to properly enjoy it. Journey to the West always fascinated me due to mythology & eastern philosophies, allegories, humour and adventurous nature of the story. It was also the last movie (TV adaptation of the novel) I watched together with my Grandma before she passed away and we loved it so it already has a very special place in my heart.