The office environment that people work in everyday dictates the culture that you are going to be in.
The next thing you do is allocate resources.
Ultimately, I don't believe that you can build a company without a lot of effort, and that you need to lead by example.
If the Martians took over eBay it would take 6 months for the world to notice.
I think you must have your own office. I don't believe ever in shared office spaces.
I walk into a company office and I can tell often whether I'm gonna invest, as soon as I walk in.