Project Considerations

I'm bouncing topic ideas around for my project.

Here's a short list of topics I'm considering:

• Hybrid Cars - which one would best suit my needs and that of my family?
• Electric Generating Windmills - cost, realiability, practicality, and longevity of owning
• Online Music - subscription services versus pay as you go - what would suit my needs?
• Ethanol and Biodiesel - how its made, what are the environmental side effects - both short term and long term?