[Terenas] Karazhan - Where are your upgrades from

[Klaus]

Weapon:
Staff of Infinite Mysteries (Curator) - This is a massive upgrade for me. The dagger from the prince would be more +damage, but this staff would be amazing for me. I can't find anything else (except the dagger that everyone wants) to upgrade to until sometime past Magtheridon. If I could pick one thing out of Kara at the moment, I think this would be it. EDIT: I checked Wowhead's loot lists for Gruul, Magtheridon, Serpenshrine and the Eye. I can't find anything I would upgrade to in any of those places. This staff is basically it for shadow priests. (One of those places has a one handed sword that would work for mages & warlocks, but I didn't find any daggers, maces or staves)

Nathrezim Mindblade (Prince): Yeah, this would be nice, but everyone wants one. :)

Bracers:
<strike>Bands of Nefarious Deeds (Maiden)</strike> Got these

Cloak:
<strike>Shadow-Cloak of Dalaran (Moroes)</strike> Got this

Necklace:
Ritssyn's Lost Pendant (trash)

Rings:
Ring of Recurrence (Chess)
<strike>Spectral Band of Innervation (Attumen)</strike> No longer care about this

Wand:
Tirisfal Wand of Ascendancy (Aran)

Pants
Trial-Fire Trousers (Opera)

Head:
<strike>Uni-Mind Headdress (Netherspite)</strike>
<strike>Wicked Witch's Hat (Opera - OZ)</strike>


So, my preferred order of bosses to see would be:
Curator
Trash
Prince