Struggling with a girl name!

[randomuser.livejournal.com]

This is my first post here!

I am having a baby in March, and we decided to not know the sex of the baby. I have had a boy name picked out since I had my first son. However, picking out a girl name has really been a lot harder then I thought it would be. Ok, so Elizabeth is a guaranteed first name. It's a family thing. However, finding a middle name is being a pain in my butt! All the names I like, except 2 are super popular in the past few years. I only found this out after looking at the most popular baby names of certain years.

The ones we like plus their number on the 100 list of 2005:

Madison #3
Hannah #8
Isabel #6 (as Isabella)
Mackenzie #23
Cadence #71
Caitlin #4

As you can see, only 2 are not super super popular. Any suggestions!?!? I am really starting to stress out. Any opinions about what is on the list or any suggestions would be greatly appreciated. Thanks in advance!