Awareness, the sub-dermal implants (Phoenix and whatever the physical damage one was called), Expert Excrement Expediter, Slayer and Sniper, Bonus HtH Attacks/Rate-of-fire, HtH Evade, Better Criticals, Kama Sutra Master, Living Anatomy, More Criticals, Pickpocket, Silent Death, Toughness, as far as perks go. Yeah, had trouble picking one (or even just a few) favorites.
Gifted, Bloody Mess (of course) for traits.