this is my case: http://www.amazon.com/Galaxy-Obliq-Protection-Samsung-Titanium/dp/B00RYCQNXK/ref=cm_cr_pr_product_top?ie=UTF8
its really nice, and lightweight, and doesnt destroy the look of the phone
dont ask about battery life. you can ask 20 people, and 10 will say its amazing, and 10 will say it sucks.
I have the case by Obliq
http://www.amazon.com/gp/product/B00RYCQNXK?psc=1&redirect=true&ref_=oh_aui_detailpage_o05_s00
And am also using this one from Spigen