I wouldn't use any of these... The legacy wow and bananashoudlers lists are only looking at plate items, and the wow-pro is just bad... Like they mentioned using DMC:Illusion as a trinket when Greatness is by far superior in every way, yet it's not even mentioned... Basically, go for as many epic items you can find... The only slot that you can't get epic pre-raid is shoulders, and you just buy a Dark Runic mantle from the AH.... You can get a lot of solid int gear from repuations. Just look for items that give you the most int/sp... Most people just go full int early on for holy light spamming but it can be a bit mana intensive at this point in the game.. If you don't feel like you get support from other healers via innervate, hope, etc. then you can stack spellpower and go for a flash of light spam build instead..
A quick and easy list to go for
Head: Argent crusade int plate helment
Neck: JC crafted neck or Heroism neck
Shoulders: Dark Runic mantle
Cloak: Wispcloak from tailors
Chest: Robe from kirin tor or T7 chest from emblems
Bracers: Flamebeard's/Limb Regeneation/Azure cloth
Gloves: Gloves of Glistening Runes or T7 gloves
Belt: Sash of the Servant/Sjonnir's Girdle/Sash of Blood Removal
Legs: Leggings of protective auras
Boots: Any good int boots
Rings: JC Crafted ring, band of guile, anhylde's ring
Trinkets: tons of options. DMC:greatness, Egg of mortal essence, Jetze's bell, and several different blue HC trinkets. Anything with good spellpower/int on its base or procs is nice.
Weapon: Mace from nexus
Shield: heroism shield
Libram: heroism libram that lowers holy light cost