I want to build a web site for my business (it's fairly small at this point - 15 employees), and was wondering if anyone had any suggestions as to what online web builder programs were out there. I don't want to pay a firm or developer to build it, but I also don't have the time to learn how to program a website. Has anyone used any web based site builders? What were your experiences? Are they easy to use and update? Do you have links to sites built with these builders? (I want it to look professional...)

Also, should I be concerned about spam or viruses by using on online web builder?

Thanks!