The best place to start is ‘I want a website’. The worst place to start is ‘I think I should have a website, I don’t know why I should bother’.
Set your self reasonable goals, it will take time to design, build, launch and promote a website. If you expect instant results, you will be disappointed, but ambition will help you invest the time and money need to produce a successful site.
Do you have a current image? When you build a website, image is important, so it may be the ideal time to pull the image for the whole business together. Often people use the opportunity to get business cards and headed paper branded. This can be cost effective, as design work for the site will be translated into printed material, rather than paying two sets of design fees for an inconsistent result.
Plan the site, look around the internet for sites that you like, this will help your designers by giving them an idea of you taste and where you pitch your business.