I guess I'll leave Silmarilion alone for now... after I've finished the four books, if I still want more Middle Earth lore, I'll buy Silmarilion and Unfinished Tales during a sale.
I need to ask you this, though: being Chinese, what did you read until now that you'd recommend for westerners? I know 'the Three Kingdoms' already, but there must be much more.
Definitely
Jin Yong. His 14 books are masterpieces, top of the genre.
Naturally I read the original, in Chinese. I've read a bit of the 14th book, The Deer and the Cauldron, on Amazon... it felt weird to me. Since his books have a great deal about martial arts, the translation might hurt your brain. But I'd say Jin Yong's books are worth learning Chinese for.
For Three Kingdoms, there are two versions:
Records of Three Kingdoms is closer to true history (with lots of errors).
Romance of the Three Kingdoms is fiction based on history. It is also what the games are based on usually, and what people talk about. Countless games were made about the Three Kingdoms, but I'd recommend above all KOEI's DOS game "英傑傳" (Legends of Heroes - my translation). It's a turn-based tactical combat game similar to
Fire Emblem. You play as Liu Bei, and you have options to follow the history (and die in the end as one of the possible endings), or change the course of history and unite ancient China under your flag.
Water Margin is another classic. KOEI has a DOS game based on this noval, called "Bandit Kings of Ancient China".
Journey to the West is another classic. This is where DragonBall stole the idea of a monkey-boy from (and that's the only thing in common with DragonBall).
Nearly everyone grown up in a Chinese culture would have heard of the above books... and like Tolkien's, the Chinese-speaking population is divided into two: Those who have already read the above books, and those who are going to.