Rondino,
I have not worked with the Carrara animation tools, but the list of features for the current version, C5, surpasses Poser7. Just the bezier functions alone put it past Poser.

Here is the feature list page, followed by the animation features....

http://www.daz3d.com/i.x/software/carrara_5/-/fullfeaturelist?

Animation Carrera 5
 
Key Frame Animation
Animation Preview Controls
Animation of object motion
Animation of shaders
Key Frame Editing (Sequencer)
Copy-Paste Key Frames
Scale Key Frames Selection
Repeat Key Frames Selection
Linear Interpolation (Tweener)
Bezier Interpolation
NEW - Spline Interpolation
Discrete Interpolation
Formula Interpolation
Oscillate Interpolation
Velocity Interpolation
Ease In/Ease Out
Storyboarding
Multiple types of constraints: 2D Plane, Axis, Ball Joint, Custom, Lock, Shaft, Slide
Graph Editor NEW (Pro Only)
NEW - Edit Motion curves
NEW - Zoom To Selection
NEW - Zoom to Playback time
NEW - Edit multiple curves together
NEW - Edit Tangents
NEW - Link/Unlink tangents
Behavior
Behavior-Based Animation
Point At Behavior
Track Behavior
Spin Behavior
Motion Paths
Editable Motion Paths
Move entire Motion Path
Align and Bank
Align
Do not Align
Sound Support - Now in both versions
Multiple Soundtracks
Import WAV files
Import AIFF Files
Move Sounds in Sequence
Display of Waveform
Save Sounds with Movie (QuickTime® only)
 Character Animation
NEW - Weightmaps Painting
NEW - Joint Orientation
Skeleton Creation Tool (Bone Tool)
Automatic Calculation of Bones Influences
Automatic Skinning
Attach Skeleton
Detach Skeleton
Send Bones to Reference Position
Joints Constraints
Edit Bones Influences over a Vertex
Edit Bones Influences over Multiple Vertices
Edit Object with Skinning in Vertex Modeler
Compatible with Morph Targets
Inverse Kinematics
IK Chain Tool
IK Target Helper
Forward Kinematics
Particle System - IMPROVED
NEW - Particle Editor
NEW - Facing Camera (Splats)
NEW - Metaballs
NEW - Particles collide with objects
NEW - Apply forces to particles
NEW - Objects as particles
NEW - Emit from objects
Bound System
Free System
Multiple Particle Shapes: Triangle, Rectangle, Diamond and Sphere
Particle Frequency
Particle Lifetime
Particle Velocity
Birth Color
Death Color
Presets
Emit Duration
Emit Area
Emit Dispersion
Freeze Particles
Air Friction
Floor Friction
Bounce Factor
Gravity
Particle Spawning at Collisions
Particle Spawning at Age
Maximum Spawn
Spawn Velocity
Spawn Radius
Spawn Force
Spawn Angle
Preview Particle System