Right now my 9 YOA niece is into clothes, clothes, and more clothes. She actually asked my wife and I not to get her any toys, just some "cool" outfits. While "cool" can obviously vary greatly by region, here in the upper midwest (USA) is apparently refers to bell bottom jeans and brand name sweaters. Don't know if this helps in your situation...
“Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.” - Rich Cook
My extended family gets together on Christmas Eve for dinner and a gift exchange. At some point, we made a rule that aunts and uncles give books to nieces and nephews. This avoids a really obscene pile of toys and saves a bit of the 'magic' for a more intimate Christmas morning family affair. This has worked really well for us.
Good luck, and Happy Holidays!
P.S. I've also given gift subscriptions for magazines - Ranger Rick and the like. Kids love to get their very own mail.