How far have you gotten in TK, SSC, and Hyjal?
10AM-12AM is 14 hours a day...how can you do that?! I would die. And, once school starts what hours will you be playing? Will homework or extra-curricular activities keep you from making a majority of our raids? We raid from 6-9PM server Monday through Thursday.
The gear you have looks fine to me. You would need to get a few enchants though -- gloves, boots, etc. and socket blue quality gems in a few places. Also, why go for +8 int gems when you could get +9 healing/+4 int? As I said, I don't play a paladin but in my opinion the healing/int combo would be more beneficial. Are you planning to craft anything with Blacksmithing?
Thank you for your application : )