generally its not recommended to have password based on personal information like date of birth, name or favorite words etc etc. But then again to remember difficult password is another job. You need to save it some where or manage your self.
But if you still want to use personal information , Password Bird is one online service which lets you create strong password by jumbling the personal information you give it.
It takes your Name, favorite word, Date of birth and then creates a random password by taking prefix or suffix of them to give you a perfect password. You can still remember because you know what info it is based on.
Here is small animation on how it works and you can create one for your self:
Related Reading : Got too many password to handle ? You have different password for all the applications you use ? Use KeePass and Save yourself from Remembering your Passwords