I'm a Chinese too, and I know Xing(2) as a surname doesn't mean "star", and the "shape" of Lei(3) is one stone on top of two stones (tell me if I'm wrong).
Do you really want a Latin name, or do you want an English name that matches your Chinese name? People here would offer better help if you can specify your need. :-)
Mom to Olivia and Aunt to Joseph, Michelle, Erica and Alex