Hey, um as far as I know Breaking Dawn part 1 doesn't haven't trading cards. But Breaking Dawn part 2 does. I was able to buy a few packs off of ebay for a reasonable price. I have a question for you though. In the Eclipse series 1 cards I got a set of chaser cards with the an "E". I have E2, E3, and E4, one of them is a Switzerland card in reference to when Bella said that she was Switzerland to Edward and Jacob, have you ever seen that set because I can find no infor on it.
Did you find what you were looking for? If not, try Twilight Saga ♦ Trading Cards and Collections. Lots of individual cards and sets listed for all the movies, and a search function, too.
BTW- Breaking Dawn Part 1 only had promo cards for Comic Con and fan clubs, and cards can still be found on the link above.
Hope this helps.