Might I suggest you to try out the Bounty Hunter? Ranged dps with heavy armor, they have a lot of cool toys to play around with as well. I find them to be fairly good at kiting too if that's what you are after, at level 10 you receive Death from above which basically is a 1 minute cooldown channel aoe nuke which can take out an entire group alone. Bounty Hunter's advanced classes are Mercenary and Powertech, main differences between them is Mercenary prefers to keep a greater distance and can heal, Powertech whilst still have long range abilities, prefer a mid to close range fight and can specialize into tanking.
Mirror version of the Bounty Hunter is Trooper, with advanced classes of Vanguard (Powertech) and Commando (Mercenary).