Security Key Vendor:
His name is Tamin, he's dressed like a Gunslinger, and he is standing near a big shop stand located between the Jedi Knight Hanger entrance and the Carrick Station Quick Travel Point. (4751, 710) He is in the center area of the station, near the Cantina, along its outer circular wall, but he is *not* in the Cantina. If you have a Security Key attached to your account, he will sell you the following items:
Aric Jorgan Customization 1.....$12,500
Corso Riggs Customization 8.....$12,500
Exchange Bandit (Speeder).....$1,500,000
Fleet Pass.....$1,000
Mouse Droid (Pet).....$25,000
Qyzen Customization 1.....$12,500
Republic Dancer's Bottom.....$5,950
Republic Dancer's Gloves.....$4,900
Republic Dancer's Hat.....$5,950
Republic Dancer's Shoes.....$4,900
Republic Dancer's Top.....$5,950
Rhythm Augmentation Droid (Toy).....$55,000
T7 Customization 6.....$12,500
Tamin isn't the only Security Key vendor. There is another one named Captain Kneely, located on the Orbital Station above Ilum. You can reach Ilum as soon as you have a starship. There are no mobs on the station and it is right where you land your ship. He sells the following items:
Akaavi Spar Customisation 8.....$20,000
Bowdaar Customisation 5.....$12,500
Bowdaar Customisation 6.....$12,500
Doc Customisation 1.....$20,000
Elara Dorne Customisation 8.....$12,500
Guss Customisation 1.....$20,000
Guss Customisation 2.....$20,000
Kira Carsen Customisation 8.....$12,500
Lieutenant Iresso Customisation 8.....$20,000
Lord Scourge Customisation 8.....$20,000
M1-4X Customisation 1.....$12,500
M1-4X Customisation 2.....$12,500
Nadia Grell Customisation 7.....$35,000
Risha Customisation 8.....$12,500
Tanno Customisation 1.....$20,000
Tharan Cedrax Customisation 6.....$12,500
Yuun Customisation 1.....$20,000
Zenith Customisation 8.....$20,000




By action class, I believe scar means Advanced Class, which is true, and is very difficult to miss if you are level 10 when you arrive (in order to see the quest, you *must* be level 10). Talk to everyone with a quest and you'll find it.
This is also where you will first learn your crew skills, where flashpoints begin (no longer the only place, according to the most recent patch notes), and the first place with warzone quests.