I have bookmarked a few animation tools a long time ago but have to give them a try yet. See if it is what you are looking for:
1.
Pencil - a free, cross-platform open-source 2D animation\drawing software. It features bitmap and vector drawing tools, layers, cameras. It supports import of bitmap images.
2.
Express Animator© - $39, trial available, Features:
- Import Flash Animations (SWF files) into your project for editing
- Import bitmap images (BMP, GIF, JPEG, PNG, TIFF) into your project
- Import vector graphics (SVG) into your project
- Import and export Enhanced Metafile clipart (EMF)
- Import wave sounds and music (WAV) into your project
- Use hundreds of included graphic pictures (Dingbats)
- Export animations in Adobe Flash format or as Windows Video (AVI)
- Export single frames in Microsoft's Silverlight format, PDF files, postscript (EPS) files, Scalar Vector Graphics (SVG) files or as plain bitmap files (BMP).
- Import Motion Capture files (BVH)
3.
Anim8or - a 3D modeling and character animation program (Free). Features:
- 3D Modeler - Create and modify 3D models. Built-in primitives such as spheres, cylinders, platonic solids, etc.; mesh-edit and subdivision; splines, extrusion, lathing, modifiers, bevel and warps,
- TrueType font support - 2D and 3D extruded text for any TrueType font.
- OpenGL based real time operation,
- Import and modify .3DS (3D Studio), .LWO (Lightwave), and .OBJ (Wavefront) object files,
- Export .3DS files,
- Built in 3D Object browser,
- Jointed character editor,
- Morph targets,
- Anti-aliased software renderer for high quality, production quality images,
- Create 3D scenes and animations and output .AVI movie files, .JPG and .BMP images,
- Supports textures, bump maps, soft shadows, spotlights, fog, and much more,
- Texture support for .BMP, .GIF, and .JPG format files,
- Print images of scenes and models.
- OpenGL shaders for realistic previews.
- Scripting language.
- Plig-ins for parameteric shape and object export.