Check out the Skyrim skill tree

Prepare yourself… it’s big.
An extensive list of skills, perks and abilities have appeared on the Elder Scrolls V: Skyrim fansite TheElderScrollsSkyrim.com following a compilation effort by players at a recent public demonstration of the upcoming RPG.
For example, if you start as a Nord you’ll get the ‘Battlecry’ ability (whatever that is) whereas Redguards get ‘Adrenaline Rush’. 
Full list of compiled skill tree perks/abilities/upgrades as follows:
Racial Abilities

ORCS: Beserker
REDGUARDS: Adrenaline Rush
WOOD ELF: Resist poison, resisit disease, command animals
NORD: Battlecry
KHAJIIT: Night-eye, claw attacks
IMPERIAL: Voice of the Emperor, find more coins when looting
HIGH ELF: Regenerate Magicka more quickly
DARK ELF: Ancestor’s Wrath (surround self in fire), resist fire
BRETON: Dragonskin (absorb spells), resist shock
ARGONIANS: Histskin (regenerate health quickly), resist disease, breathe underwater
Note on racial stats: Each race starts off with different stats.
Argonians start with 25 in Lockpicking, 20 in Pickpocketing, Sneak, etc…
Orcs start with 25 in Heavy Armour, 20 in Enchanting, Smithing etc…

 
Perk Trees:
Speech

Buying and selling price 10 per cent better (5 ranks)
10 per cent price buying from opposite sex
Invest in shops and increase available gold permanently in invested stores
Master Trader – every merchant in world gains 1000 gold for bartering
Buy and sell from any merchant regardless of what they normally buy and sell
Intimidation attempts twice as successful
Persuasion attempts more likely successful

Alchemy

Potions 20 per cent stronger (5 ranks)
Potions for restore health, magicka or stamina are 25per cent more powerful (maybe ranked)
Poisons 25 per cent more effective (maybe ranked)
Poisons last for twice as many hits
Two ingredients are gathered from plants
50per cent resistance to all poisons
All negative effects removed from potions and all positive removed from poisons
2 effects of an ingredient are revealed when testing it for the first time (instead of just one)

Illusion

Dual casting overcharges effect for more powerful spell
Cast Novice spells for 50 per cent less magicka
Cast Apprentice spells for 50per cent less magicka
Cast Adept, Expert, Master etc spells for 50per cent less magicka (more levels this time around)
Spells work on higher level animals
Spells work on higher level people
All spellcasting (from ANY school) is done silently
Spells work on undead, daedra and automatons
Fear spells work on higher level enemies

Conjuration

Novice for 50per cent magicka etc (up to Master)
Dual casting overcharges -> greater spell effect
Bound weapons do more damage
Bound weapons cast Soul Trap on target
Bound weapons banish certain creatures
Reanimate undead with 100 more health
Summon 2 Atronachs or reanimated zombies
Summon Atronachs at twice the distance
Summoned Atronachs twice as strong

Destruction

More damage for each school (fire, frost and shock) – ranked
Novice for 50 per cent magicka etc.
Shock damage chance to disintegrate targets if their health is under 10per cent
Frost damage chance to paralyse targets if health low
Fire damage chance to make low health enemies flee
Place runes 5x farther away

Restoration

Healing spells also restore stamina
Novice for 50 per cent less magicka etc
Healing spells do 50 per cent more healing
Recharging healing spells
More is recharged with each hit with healing spells (unclear)
Spells more effective against undead
Once a day chance to autocast 250HP restoration when health drops low
Magicka regenerates 25 per cent faster

Alteration

Novice for 50 per cent less etc
Alteration spells have greater duration (ranked)
Absorb 30 per cent magicka that hits you

Enchanting

Enchants are 20 per cent stronger (ranked)
Enchanted armour 25 per cent stronger
“Soul gems provide extra magicka for recharging” – again, dodgy recording but that’s what I heard, even if it doesn’t make much sense
Death blows to creatures but not people trap souls for weapon recharge
Health, magicka and stamina enchants stronger
Extra effect on already-enchanted weapon can be applied
Shock, Frost and Fire enchants 25 per cent stronger (individual perks for each element)

Heavy Armour

Increase armour rating 20 per cent (5 ranks)
Unarmed attacks with heavy armour gauntlets – damage increased by gauntlets’ armour rating
Half fall damage if all in heavy armour
Heavy armour weighs nothing and doesn’t slow you at all
Additional 25 per cent armour if in matching set
25per cent armour bonus if all in heavy armour (not necessarily matching)
50per cent less stagger if all in heavy armour
10per cent damage reflected back to enemy if all in heavy armour

2-handed weapons

2h weapons do 20 per cent more damage (5 ranks)
Attacks with warhammers ignore 25per cent armour (ranked)
Attacks with battleaxes do extra bleeding damage (ranked)
Attacks with greatswords do extra critical damage (ranked)
Power attacks cost 25 per cent less stamina
Standing power attacks do 25 per cent bonus damage, chance to decapitate
Sprinting power attacks do double (critical) damage
Sideways power attacks hit all targets
Backwards power attacks have 25 per cent chance of paralysis

Archery

Bows do 25 per cent more damage
Zoom in
Zooming slows time
10 per cent crit chance
Move faster with drawn bow
Recover twice as many arrows from dead bodies
50per cent chance of paralysing for few seconds
Draw bow 30 per cent faster

Sneak

20 per cent harder to detect (ranked)
Sneak attacks do 6x damage with 1h weapons
Sneak attacks with bows do 3x damage
Sneak attacks with daggers do 15x damage (end perk on skill tree)
Noise from armour reduced 50 per cent
No longer activate pressure plates
Sprinting while sneaking performs silent forward roll
Running does not affect detection chance
Crouching can make hostile enemies lose sight of you and search for a target