Copywriting needed for SEO website / company

I am having severe writers block while trying to write effective sales copy for a few outstanding pages of an SEO / Internet Marketing website. I'm looking for is someone with a solid understanding of internet marketing / marketing in general to jump in and write some amazing (not-so-technical) copy for several areas of the site. The copy should follow a "whats in it for me" format approach where we're continually letting the customer know how we can make their company money, shorten turn around times, make it easier for them, etc. I prefer a native English speaker with some technical knowledge or general understanding of concepts like SEO, PPC, Email Marketing, Social Media and previous experience writing this kind of material. The areas I'll need copy for are: Services Page (SEO/PPC/SMM/Email Marketing/Desgin & Development/Hosting) - Approximately 8 paragraphs total. Case Studies & Testimonials (Main page) - Approximately 3 paragraphs total. Case Study: Individual Case study (4 sections: about, challenge, solution, result) - Approximately 7 paragraphs total. I will fill you in on the general details and you do the rest. Our Process - Approximately 5 paragraphs total. Our Mission Statement - Approximately 5 paragraphs total. Portfolio - Approximately 2 paragraphs total.