If you're using him for pve, which is what it looks like you're getting at, I woudl lose Iron will.  Put two of those points into imp bloodrage, a useless talent, but what comes after it, Last Stand, is HUGE.  For me its another 2k life for 20 sec.  Just enough time to save you in a tight spot.  Put another one of those points into imp shield block, but just one, any more is a waste.  'cause for that one point yoru sb ability lasts for another hit, which is huge.  Maybe put that last point in imp sw or a cheaper sunder.   just my 2 cents :-)