I was wondering the same thing recently, so I put together this list. There's some overlap and sometimes there's more than one item for the same slot. This is because some have different stats, like SBV, or resist, etc.
CoT - Escape from Durnholde Keep
- Iron Band of the Unbreakable (Lieutenant Drake)
Shadow Labyrinths
- Adamantine Figurine (Blackheart the Inciter)
- Shoulderguards of the Bold (Murmur)
Shattered Halls
- Greathelm of the Unbreakable (Grand Warlock Nethekurse)
- Figurine of the Colossus (Warchief Kargath Bladefist)
- Greaves of the Shatterer (Warchief Kargath Bladefist)
The Steamvaults
- Steam Hinge Chain of Valor (Mekgineer Steamrigger)
- Devilshark Cape (Warlord Kalithresh)
- Gauntlets of the Bold (Warlord Kalithresh)
CoT - Opening the Dark Portal
- Burnoose of Shifting Ages (Chrono Lord Deja)
- Legplates of the Bold (Aeonus)
- Pauldron of the Crimson Flight (Aeonus)
Mechanar
- Thorium-weave Cloak (Mechano-Lord Capacitus)
- Jade-skull Breastplate (Nethermancer Sepethrea)
- Dath'remar's Ring of Defense (Pathaleon the Calculator)
Botanica
- Syrannis' Mystic Sheen (Commander Sarannis)
- Aegis of the Sunbird (High Botanist Freywinn)
- Mithril Bark Cloak (Laj)
- Warhelm of the Bold (Warp Splinter)
Arcatraz
- Thatia's Self-Correcting Gauntlets (Dalliah the Doomsayer)
- Breastplate of the Bold (Harbinger Skyriss)
- Elementium Band of the Sentry (Harbinger Skyriss)
Edit: I also didn't include quest rewards. For example, Grom'tor's Charge is by far your best choice for a weapon for a while.
If you want a REALLY GOOD easy to obtain ring that will last you until you get one of the above, pick up a Band of the Victor from 15 Marks of Honor Hold. It has +25 stamina and you can socket it with another +9 for cheap.
Edited, Jan 7th 2008 5:14pm by duvar