I found the following resources to make my life easier. Hopefully some will work for your classroom.
Library Learners blog has a great selection of read aloud books that focus on each of the habits!
Always Sunny Project has a great set of posters! Most likely using these in my room. I love the simplicity of the color and design. Very Nice!
The Teaching Oasis has some great posters that simply explain the "7 Habits" There are several versions that would work with any classroom.Finally, I created an "I Am A Leader" poem for my class to start thinking, acting, and finding their inner leader. Have a great week!