Sorry to dredge an older post, but I'm new here and thought I'd input some help...
Wix - stay away if you are serious about your business. Yes the paid plans are better than the free ones, but who needs a monthly charge just for a website!?!? (no one!)
Squarespace - as mentioned, tread with caution! Their sites are designed to "lock you in" so if you ever decide to move your site to a new platform you potentially could lose everything - most importantly SEO history!
@Rebecca - you mention a couple of times that you don't have much budget or want monthly payments. Wordpress is perfect for this! Other than domain and web hosting renewals annually, which should be no more than £100, once the site is built, it's free! I'm talking WordPress.org here not WordPress.com.
I've built a few low cost "single page" sites for businesses who just needed to "get online" and later down the line, if they need to, they/we can expand the site to have more pages. Once setup, the WP CMS is so simple that adding new pages and blogs is easy - I encourage all my clients to learn what to do and understand their business!
As you're a Wordsmith, the hardest part of any project should be easy-peasy for you! Writing content about your business.
Hope that helps, by all means ask any questions you have.