I have created or helped create several Facebook fan pages and I think it's a great "free" tool for any business. I actually created one for the Small Office/Home Office site as I was writing this article.
You can read the article here
Create a Facebook Fan page for Your Business and if you have specific questions as you create your page, please post here for help.
Also, (shameless plug), my company Smart Marketing Works creates fan pages for a very reasonable cost. And/or, we can provide assistance in creating marketing action plans to help you with content, building fans and cross-promoting your fan page.
I would love to have YOU as a fan for the SOHO page, too--you can access a link in the article, or just go here:
SOHO Fan Page and click "become a fan".