We have a popular website with extensive SEO work already done on it, we are looking for a Joomla 1.5.x designer who will design a better, more web-usable and user-friendly website along the lines of our current site, with sections for additional features, such as "announcements" etc. An important consideration si to minimize any impact this may have on our current SEO ranking since the current site has already gone through extensive SEO work.