If you're thinking about starting a company, here is a really good presentation that David Spitz gave a few months back at CED's Innovator's Workshop. Download spitz_innovators_workshop.ppt
You should go through this closely to make sure you're thinking about many of the key issues in starting a business (how do you know there is a market, what it takes to win, where will the money come from, building out a team + a ton more).
Dave knows his stuff after being CEO of several venture backed companies. He is now VP of Bus Dev at ChannelAdvisor, one of our portfolio companies. Thanks to Dave for giving me a copy to post here.