So, you want to queue for the Raid Finder on your enhancement shaman, but you don't quite have the required 372 item level for it yet. We've all learned tips and tricks over the year since Cataclysm launched to cheat the ilevel restrictions, like wearing restoration gear to inflate our ilevel. However, if you want to actually benefit the raid and increase your chances of downing bosses, those tricks are not the best way to go. There are multiple accessible 378 items for near every slot.
The first rule of getting geared for Raid Finder is to avoid Hour of Twilight like the plague. There's seriously only one drop in the instance that's worth getting, and that's the Clattering Claw. Dawnslayer Helm? Both our Erupting Volcanic Helmet and Scalp of the Bandit Prince put that ugly hit/haste helm to shame. Betrayer's Pauldrons are a possible good choice, if only because extensive testing by yours truly has proven that Mantle of the Fiery Protector does not actually exist. It's a myth. Flickering Shoulders of the Zephyr/Windstorm are both good choices to use over the Hour of Twilight shoulders, but getting a useful random enchant on an already random drop is not a sure bet.
Hour of Twilight also has the Cinch of the World Shaman as a quest reward. I'm so glad Blizzard decided to create an agility belt with shaman in the name and itemize it to be absolutely awful for the only spec of shaman that uses agility. Well played, Blizzard. If you're fresh to 85, this will unfortunately be your main belt choice, as the Firearrow Belt requires you to be honored with Avengers of Hyjal. However, you're a lucky shaman who has to run Firelands to deal with the itemization woes of the 4.3 heroics anyway, so you should be honored in no time at all!