Both of my kids were due on holidays. My son's due date was 11/22/2007, which was Thanksgiving that year. He was born on the 21st. My daughter's due date was 2/14/11, Valentine's Day. She was born on the 15th.
Both times I really wanted them to be born on their due dates, but they're also both positive holidays that aren't about gift giving. I know a lot of people don't want their kids born on Halloween or Christmas because of the negative connotation of the first, and the overshadowing of gift giving on Christmas.
Are you worried about the possibility of your baby being born too close, or on, a holiday?