Newsletter design and content writing

We wish to issue an occasional newsletter in both hard copy and email format to existing contacts and new prospects, with an option for links to website pages (also to be developed).
We are locksmiths and architectural ironmongers in London, with little experience in this area. The newsletter is to include product developments and new lines/services, industry news, and suitable promotion material.
We can supply images, logos, and information of products and services to be included in the newsletter.