OP,
I wrote in one of the posts above that friends or relatives across the Pacific Ocean tend to give a more expensive present. Although I am not sure whether I am correct here, one person o seems to blog about the same. Since I am not supposed to provide a link to a blog, I include some info from that blog for your info. (The first part seems to be not directly related to gifting.)
Another point I would like to mention is that, from a typical westerner’s point of view, the parents over there could be regarded as being “overly zealous” to see (or even “make sure”) that their son/daughter would be married by a certain age. This is especially true for their daughter. If one partner believes that the other partner is still not committed to marriage within a couple (at most 3) of years, he or she may decide to pull the plug and back out of the relationship. (Actually, I heard that Indians, in both Asia and the US, are in general even more “efficient” in their courting. Two of my coworkers actually got married within a year after they had met their respective partner – and during most time in this year, they were in a long distance relationship.)
"If you’re about to meet your Chinese partner’s parents then your relationship is about to make a major leap. In general, Chinese people see this as the sign of a serious relationship, and often preparation for a marriage proposal. The parents will be judging you to see if you are a good enough person to become their in-law. It is a relatively formal occasion.
When you are at the door, address them using the terms ‘uncle’ and ‘auntie’, which is a standard term for strangers of their age in China. Don’t act too casually. Chinese tradition praises people who are prudent, modest, honest and even slightly introverted. People consider those with such characteristics trustworthy – an important attribute for parents protecting their children. So if you are visiting and want them to like you, don’t be too eager to make a big impression, and do act politely and prudently.
Gifts and meals
In China, the first meeting between potential in-laws is a formal occasion, so you should bring gifts which are expensive, thoughtful or otherwise special in some way. Popular gift choices are fresh fruits, nutritional products, tea, expensive liquor and so on.
Typically the first visit will take place in the family house. In such a case, the visitor does not need to pay. If the group is dining out, the boyfriend should be prepared to pay for the meal, to show generosity; the woman does not need to pay.
These attitudes and customs are generally the same across China, although in big cities people are less likely to cling on to traditions, and may be more open-minded, so such meetings may be somewhat easier."