Write compelling / witty text for a product launch email

We are about to launch design web site design services to a specific niche in the United States. We're using pricing and social media integration as our USP. Our challenge is that we're brand new, in a competitive market and with no testimonials. We need compelling and witty text for our first email shot. It needs to be clean, professional but also should be fun - we know our stuff, but also want to have a great and personalised relationship with our customers. Can you write something that's SEO friendly and won't flag the spam filters? Let us see some of your previous work and we'll let you know the industry / niche we're targeting. It is vital you have EXCELLENT English writing skills. Please supply at least one sample of your work when you apply.