I didnt level like this, but i went TK for leveling. at 50 my build is this.
http://www.torhead.com/skill-calc#600GhrR0dZbsbrdorh.2
I play a Sage tank, where i basically take the Aggro intended for the Real healer of the group in pvp. People will target me due to being a sage, where they would ignore a Sawbones, or a Combat medic. I can keep multiple people busy for a while. was one of the best Trackstars in galaxies
Most fights i stay back and free cast, but if needed like in Huttball i can heal the ball carrier with out issue.
I average at 150k Damage, and 140k healing. since im constantly spamming rejuvenate on others, and myself, along with restoration.