This is one for us too Libra, ds's birthday is on 14th december. he was 16 days late and it really bothers me that his birthday is now so close to Christmas. He is also going to be one this year, so its not an issue for us yet either. One of my friends has a daughter who is now about 7 and her birthday is 4th december. She phoned me up just before ds was born and we had a long chat, and she told me some of the things they do. They put up the tree etc in time for her birthday, so the ritual of decorating it is part of her birthday (actually I don't like that one, I think I will decorate the house with birthday streamers and ballons, and then Christmas will start AFTER his birthday, in order to make the distinction.) She always has a party or trip (to the zoo etc) and it doesn't seem to matter that it is close to Christmas, the kids still want to come, in fact they are in the party mode as it were. She also said they make sure they buy separate birthday and Christmas presents, so she knows that her day is different and special. She said the hardest thing was coming up with 2 good presents at the same time of year. Sometimes it would be nice to get something that is more "summery" but then it is no fun to get that in Decmber and not be able to use it. Her solution was to put aside some money (maybe from grandparents etc) which they then use to buy something in the summer. I like some of those ideas. I would have hated the one big present thing as a kid as I was more interested in how many I had to open not how much it cost!!
We have another problem, which is that my dh is Dutch, and Dutch kids receive their presents on 5th December, and not 25th. We live overseas in a country where the kids get presents at New year not Christmas, so that is 5th, 14th, 25th and 31st of December! (although hw won't get 3 times what he would get at Christmas, we'll split them over 5th, 25th and 31st) I really don't want him to grow up mercenary, so it will be a fine balance.
Actually I think it is easier with little kids as you can do a birthday party, but its harder for older kids adults as it tends to get forgotton.