Easy way to insert a pdf page into every other page of another document?

I have a document with Page 1, Page 2, Page 3, …..

I want to insert Page X in between each page like this…

Page 1
Page X
Page 2
Page X
Page 3
Page X


Etc

Is this possible in adobe 9?
-Some people say good things come to those who wait, truth is, good things come to those who work..... who work later.....who work harder...... who are willing to go further than anyone else to get them. If you're waiting for good things to come to you, you'll be waiting for a pretty long time.

-I'd rather live life saying "I failed" than "I could have"