A proven way around the laws is the use of the . So acquire it, the recipe for making it. recreate it or do something similar (e.g. 'scapegoating' - shifting the stain onto someone else).
Stephen

This is the guidance given to apprentices of Psychomancy/Neuromancy

Any use of magic to invade the mind of another human is unlawful.
Magic used to read or affect human Thoughts and Beliefs is unlawful.
Magic used to read or affect human Desires and Motivation is unlawful.
Magic used to read or affect human Emotion and Moods is unlawful.
Magic used to read or affect human Memories is unlawful.

However the use of magic to enter the mind of a willing human receipient may be lawful (provided free will isn't altered) and the use of magic to enter the mind of a recently deceased person who may subsequently be revived may be lawful as may the
use of magic to read or affect the perception and/or motor abilities of a person even when free action is compromised.

Magic may also be used to invade the mind of animals.

Perceptual Changes
Magic may be used to affect Vision: Blindness, Imposed Images.
Magic may be used to affect Audition: Deafness, Imposed Sounds.
Magic may be used to affect Touch: Numbness, Imposed Tactile stimulation.
Magic may be used to affect Smell: Absence of Smell, Imposed Smells.
Magic may be used to affect Taste: Tastelessness, Imposed Tastes.
Magic may be used to affect Proprioception: Clumsiness, Imposed Stimulation.
Magic may be used to affect Balance: Loss of Balance, Imposed change of Balance.
Magic may be used to affect Magnetic Sense: Absence, Imposed change
Magic may be used to affect Thermal Sense: Absence, Imposed change
Magic may be used to affect Pressure Sense: Overwhelming, Imposed change
Magic may be used to affect Magic Energy Sense: Abscence, Imposed change
Magic may be used to minimize Pain but Imposition of Pain may be unlawful.
Magic may be used to affect multiple Senses: Sensory Deprivation but Imposition of  Halluciatory Experience may be unlawful.

Motor Changes
Magic may be used to affect Muscle Tension: Hypertonic (skeletal muscle lock) Hypotonic (flaccid skeletal muscles)
Magic may be used to affect Muscle use: Quadriplegia, Hemiplegia, Limb Weakness,
Magic may be used to affect Ballistic Movements: No Fast Limb Movements.
Magic may be used to affect Controlled Movements: No Precise Limb Movements.
Magic may be used to affect Automatic Motor Movement: Stumble/Fumble, Imposed automatic movements.
Magic may be used to affect Motor Planning: Apraxia (no skilled movements), Imposed skilled movements.
Magic may be used to mentally copy and master motor skills.

Arousal Changes
Magic may be used to affect Sleep/Wake Cycle: Imposed change.
Magic may be used to affect Alertness: Hypervigilant/ , Imposed change.
Magic may be used to affect Attention: Indifference/Fascination, Imposed change.

Hope this is useful
Stephen

I am thinking of going with the the life energies angle.

The main question I am pondering is that if the character does fail the checks and begins to feed, but is forcefully stopped before taking a life, would make the thirst easier (hunger is sated slightly/for the time being, kinda like whampires who feed shallowly), more difficult('more more more more more!'), or just 'different' ('Sooo good') to resist?

So far I'm leaning more towards the easier for a time angle, or at worse just 'different' in flavor text but same in difficulty.

If he needs to feed on life energies and it is thru blood then the result depends upon how you decide what is enough (full Red Vamps probably require much more than half RVs for 'living' so it should be easier). The magical controls installed thru the tattoos can be limited to what Susan said (warning) but there could be 'experimental' additions.
Stephen

I am still thinking on making a skill system for the magic. however if I do that...I need a list of the seperate magic for Harry Dresden Universe (Mainly because it's more varied in skill than base DND, some might be a combat magic specialist with little skill in...Thaumergy (Sp?) and the like.)

The books give a messy picture on magic e.g. Harry says evocation is flash bang line of sight magic but Molly's neuromacy, psychomancy and veils and Mort's ectomancy seem more evocation like to me (mental effort only) than thaumaturgy (lots of materials).
Book named specific forms of magic:
Ectomancy - spirits
Kinetomancy - motion/force
Pyromancy - fire/temperature
Vulcanomancy - earthheat
Ferromancy - magnetics/electrics
Necromancy - death/zombies+spectres, etc
Anthropomancy - future Intellectus by reading human entrails
Neuromancy - mind reading/wrting
Psychomancy - Person/Object Limited Intellectus
Beeromancer - beer

Alchemy (Potions, Ointment, etc) is probably a form of Thaumaturgy as is Enchantment  (Foci, Amulets, Runes?, etc).

There have been other spells but the class of magic hasn't been named e.g. NN portals, gravity focusing, sell's shadowman, veils, Sight, Soulgaze, etc.

Hope this little bit helps
Stephen

I just saw Next which was a movie about a guy that could 'see' 2 minutes into the future (I think Abby in WK was slightly longer) but Next could be a DVish Movie.

The Covenant was another movie that could be a DVish Movie.

What other movies have people seen that could be Dresdenverse-ish and hence good for some RPG scene setting?

Harry could pick up waterskiing and attach the energy charger thingies to his feet.  He'll be distant enough from the boat to avoid any tech complications, but still be able to power up quickly.

Or for a thrill take up skydiving.
Doubly dangerous.
Stephen

So, how about duplicating the effect instead of just enhancing a preexisting gun?

Instead of gunpowder, use some kinetic charged magic thingy.  Charge it up by leeching off a train's momentum.  Load some bullets, pull the trigger, and some of the kinetic energy is released.  Instead of pushing directly onto the enemy, it's used to accelerate a small piece of enchanted metal.

Not really that high tech, but it's still a magic gun.

Love the idea.
I've been wondering why harry charges his force rings with arm movements when he could use much more powerful momentum sources (heel strke, leg swings if personal space is required) but I've always wondered about massive momentum sources (the beetle, trucks, el trains, freight trains, ships, etc). I've assumed its because you either can't or the spell to do it is too different/complex/dangerous but there is always the possibility that it's just unthought of.
Stephen