Any positioning inroads made can quickly be reversed, as you open up the opportunity for another entrepreneurial mind to capture your previously loyal audience. Viewers are simply not ready to pay for information they can get elsewhere. Program your site to the lowest common denominator . Viewers will go elsewhere if they have to download the latest greatest browser every night just to see your site. If your site has a long download time, you are not appreciating your customer.
Content is of much more importance than graphics.
Don't Flash TM if you don't have to. It's time consuming to have to sit through it just to enter the site. A must click front page has to have a purpose, such as language choice, version choice, etc. You only get one chance to make a first impression, so make the most of it. That's not to say you can't list your web site until it's finished.