My PB is at lvl 40, and Ive found that I got on fine without bothering with Nova, and, infact, once you 6-slot the two shield powers, Dwarf mode becomes obsolete. I've found that sometimes, with both shields up, I can tank better than when in dwarf form, not to mention my self-heals are stronger/faster in human form anyways. As far as acc. goes, i think I 6-clotted it with acc...not totally sure, at work at mo. Only thing that is a genuine problem with my pb is end. Without RA it goes very quick, but then, during soloing, against 2/3 grp mobs, up to 2 lvls above i think, I can safely remove them without much loss to hp. I havent bothered with Dawn Strike yet, went for Light Form instead, which helps greatly sometimes against bosses/big mobs. Still think a respec might be in order tho hehe. Will try to post my enh when i get home.