Full Daedric Armor
Daedric is the best heavy armor in the game. Go to Vivec.Go to the boat there travel to Tel Branora from there.From Tel Branora travel to Sadrith Mora.Then check your world map.Go on each of the small scattered islands to find Tel Fyr. I forgot exactly where it is but it's on 1 of those islands.Once you found it,go inside.Then go upstairs and go through the door that says Hall of Fyr.Keep looking up until you see a large hole in the ceiling you will need a levitating spell or something.Go up the hole and check each of the rooms.You will eventually find a guy with all daedric except for the helm.If you haven't done the main quest for him yet,when you kill him you won't be able to beat the game properly.If you already did the main quest for him go ahead and kill him,it won't matter.Loot him after killing him and take his daedric armor.
Now go to ghostgate and go to the lower level of the tower of dusk.Search every room and you will eventually come up to a guy with a strange helm. Kill him and take his helm.Equip all daedric and you now have full daedric armor! Woot!