Well, after talking it over with Theloras, the One True God, I settled on this:
http://db.vanillagaming.org/?talent#sVxurgotVMt0IHe seemed to agree that Shield Spec was not worth it if your gear did not capitalize on it, as well as Defense being The Way to unlock Imp HoJ. He was not keen on Precision, and after thinking about it, I see why: the only attack I have that would be affected by melee hit (aside from autos) would be HoW, and as a hpally, I will have neither the AP, nor the spelldmg to make it very worthwhile. Def, on the other hand, requires melee to have 4% hit to be hit capped against me, plus it adds a little dodge/parry/block chance. Not much, but the best of the worst. He also convinced my the Imp Conc Aura is not worth gimping Imp HoJ to get, as the real benefit is strictly RNG based, whereas a HoJ every 45sec is a sure thing.
Now if only I could figure out how to hit players with nades...=)