SEO service

We are looking for SEO consult to work with us to promote our website traffic and convert them into sales. At the moment we have quite a number of visitors around 30 per day and this has to be double by relevant SEO activities.
facebook site, twitter, article marketing, online and offline marketing, pay per click and any other techniques that you may think is needed.

My budget is tight, but I am willing to consider increasing the pay once we started getting the desire results.