I'm going to give this a go, I have never read a graphic novel in my life and not sure if it'll be my thing but I like to try new stuff. Dewey is offering the chance for people to join this challenge half way through and only read half the books (just 3) which makes it less daunting.
I have ordered from my library:
Persepolis 1 and 2
Sandman by Neil Gaiman
As I had read a great review about the first 2 the other day (I can't remember who by) and I'm interested in reading more Gaiman.