Ret/Holy leveling

Hi i want to level from 1-60 and do some dungeons. I heard that people don't invite ret/prot paladins, cuz they're weak. But for low lvl instances too?
I want to be useful so i want to do some dps and heal. It's possible to do both? At the same time i'd like to be able to do some quests and kill mobs without problems and without fighting for an hour to kill them. I think about this build:
http://www.wowprovider.com/?talent=1121 ... q52302512g
I know that i miss BoM, 2H spec and Vengeance talents, but instead of them, i'm better heal and i have Holy Shock, which i can use to do some damage too. Idk how it looks on Vanilla, can i wear ret items and manage to heal from 1-60 or need to equip heal items?
I want to be useful so i want to do some dps and heal. It's possible to do both? At the same time i'd like to be able to do some quests and kill mobs without problems and without fighting for an hour to kill them. I think about this build:
http://www.wowprovider.com/?talent=1121 ... q52302512g
I know that i miss BoM, 2H spec and Vengeance talents, but instead of them, i'm better heal and i have Holy Shock, which i can use to do some damage too. Idk how it looks on Vanilla, can i wear ret items and manage to heal from 1-60 or need to equip heal items?