Should I....?

Ok, so I'm purchasing my books and uniforms for NS and I have 2 questions. And, I am probably over analyzing this and it may not make any difference which I go with, but I would like some feed-back from other nursing students.

(1) Should I save money & purchase used books, that have the CD & other materials included?
OR
Should I spend the extra money & get brand new books? Is there any REAL upside to having brand new books that I'm not thinking of?

(2) Should I purchase the uniform top that is button-up and a one-piece back?
OR
Should I get the top that is zip-up with a three-piece back "for perfect fit"?
(I'm small chested with high hips so I'm leaning towards the three-piece back so it would be adjustable, but
I'm worried about the zipper closure...)

THANKS!