Speaking as a webdesigner I have seen may websites designed by business owners with alsorts of editors and tools and you can tell it has been done with these. The best way is to learn it yourself or employ someone to do it for you.
The basic tools you really need is a nice little HTML editor called HTML Kit, google it (it wont do everything for you, you still need to learn HTML) Photoshop or a good image ediotor (A good one free is THE GIMP, again google it) for image resizing and nice logo creation, a web host to host your site for you and a decent FTP client to upload your site to your webspace.
Hope this helps, any further questions id be happy to help with