For 3D design :

• Solidworks Student Edition
• Solidworks trial version
• CATIA Student Edition
• 3DVIA Shape (free download)

For 2D drafting :

• Draftsight (free download)

For Rendering :

• Bunkspeed Shot (free trial version)

For Simulation :

• Abaqus Student Edition as a free download

For Animation & Documentation :

• 3DVIA Composer (free trial)
• Create a 3D Scene (free) 
• Bunkspeed Pro  (free trial)

For HomeDesign :

• http://www.homebyme.com (free)

For Mobility :

• 3DVIA Mobile For your iPad and iPhone are available on the Apple® iTunes AppStore
•  Download eDrawings for Android
• eDrawings and eDrawings Pro are available on the Apple® iTunes AppStore

Hope you will enjoy these soft !