(Not updated for 1.2.0) Acrobatics, Vaal Pact, Phase Acrobatics, Ondar's Guile.
Link to guide includes level progression, budget version, Character breakdown and much more http://www.pathofexile.com/forum/view-thread/852727
(Not updated for 1.2.0) Resolute Technique, Iron Reflexes, Unwavering Stance.
This is a explosive build for the marauder: It utilises infernal blow with melee splash Leap slam to manouvre around The build is pretty tanky due to Endurance Charges and Stun. This build can easily be done in hardcore.
Chaos Inoculation, Ghost Reaver, Conduit, Unwavering Stance.
High Elemental DPS Spellcaster, It uses the Voll's Protector and the Voll's Devotion Amulet, and high critical chance gear. Build is updated and 1.2.0 ready!
(Not updated for 1.2.0) Phase Acrobatics, Ondar's Guile, Acrobatics.
High Evasion/Dodge/Block percentage. Claw/Shield, Life leech. Really fast-paced game-play. As long as there are enemies to hit, you can't die.
(Not updated for 1.2.0) Eldritch Battery, Iron Reflexes.
A balanced rain of arrows build with eldritch battery and mana regen as well as life regen, that use mind drinker to fight with mana problems.