Here's what I'm working toward: http://www.torhead.com/skill-calc#301GoMrdRroGZbsbro.2
I'm level 43 at the moment. You do overheat if you're not careful but I love the Retractable Blade so I'm keeping it for now. I do overheat a bit and I'm not as tough as when I was full 31 points in Shield, but its fun. I seem to get more medals in PVP when I run this and attack more than just guard and taunt when I am full tank but it may be a play style thing. I'm not very good at PvP.