A Priest has just recently conquered the frozen wastes of Northrend and hit level 80. It is sure that you can't rush headlong into combat with Kel'Thuzad himself or hoards of enemy players - not just yet. So now what do you do? We will look everything a newly 80 will need to know like talent specs, gear and enchants.
   One of the easiest and most important ways to increase the power of your character is talents once level 80. It is crucial for you to have the correct talent whether you're intending on doing healing or DPS, PvP or PvE. The followings are the generally accepted best talent specs for each situation a newly 80 Priest may find them in. There is no doubt some flexibility, so treat these as guidelines.
   PvE:
Holy PvE - 13/58/0 with Greater Heal usage
Holy PvE - 14/57/0 without Greater Heal usage, Renew focus
Discipline PvE - 57/14/0
Shadow PvE - 13/0/57
PvP:
Discipline PvP - 57/14/0
Shadow PvP - 17/0/54
Shadow/Discipline Hybrid PvP - 38/0/33
   Lacking good gear is the biggest hurdle a newly 80 Priest must overcome. Through questing and a few dungeons you may have acquired a few decent pieces, but most raid groups are going to want you to have full level 80 blues. The best place to gear up pre-raid is in Heroics, but you may not be geared enough to do them just yet. You could run some of the higher level normal dungeons, but those are usually rather difficult to find groups for. A better option is to seek out level 80 BoE blues and epics, and crafted items.

   Just like the Titansteel Spellblade or Titansteel Guardian are fantastic epic weapons crafted by Blacksmiths. A jewelcrafter can outfit you with rings and a neck, epic or superior, which depend on the size of your bank account. If you're a tailor, you should focus on crafting one of the epic sets that suits your chosen spec.

   It is simple to find gear upgrades, similar to visit the Armory and use the "Find an Upgrade" feature. However, this feature will often not consider your spec. That is why it important that you understand how to gear your character, so that you can recognize an upgrade on site.

   Holy Priests rely heavily on critical strikes. In addition they gain necessary bonuses from having high Spirit. An aspiring raiding Holy Priest should look closely at gear that has Intellect, Spirit, Spellpower and Critical Strike rating. Hit rating is completely useless to a healing Priest. Haste is nice to have but not as important since Holy Priests use a lot of instant spells. MP5 is always a good thing to have, but a robe that has Spirit and no MP5 is much better than one that has MP5 and no spirit, in the majority of cases.