Red, the site is a good base of information, however, As John & I have said, DIY!! Microsoft Frontpage will do it for you as a basic package, you can even download that website and personalise it yourself (as long as there is no copyright issues).
I pay my ISP £9.95 per YEAR for them to give me 5 pop3 email accounts and I think 20Mb of webspace. They also give some tools so you can monitor traffic to your site, allow you to create and modify your own email accounts etc.
All it takes is a little creativity in designing a website!!
£20 a month therefore is a lot of money. He will personalise that site (30mins), upload it to the ISP (2mins) then wait for you to ask him for modifiactions... ok so he may send you stats on a monthly basis, whoopydoo!
As far as search engines are concerned, this is a different matter, this is something else you will have to pay for if you can't do it yourself. To get high on the search engines is an ongoing task, once you get there - you got to stay there!
My view, I don't sell though a website, yes I have a website that I can direct customers to for information if necessary, but unless your at least regional in your customer base then ask yourself is it worth the expense to try and promote your website as a sales tool. Information - Yes, design, upload and leave (with the occasional update) but as a sales tool, then I feel it would take a lot more than £20 per month.
Besides, you will learn much more by trying to do it yourself, the first attempt will look terrible but you will get better, especially if you do your research
If you need anymore info then email me.
Chris