The only quest item you need is Bulwark of Redemption. It is a very nice shield, the next non-heroic upgrade for it is only the shield from last boss in UP. For everyithing else get your stormhide sets and Titansteel Guardians. I also strongly suggest you to start doing wintergrasp for marks and honor, you will be able to buy 3 epics for WG marks at 80 immediately.