I have a client from Asia who is a wholesale provider of a health related product. Unlike the other customers, this guy knows a lot about SEO. Now he has handed me over a list of 300 low competition / long tail keywords that he wants me to rank for within, say, a weeks time. Can anyone suggest what will be the quickest way to rank for multiple low competition keywords? My thoughts were article directories or videos with a small bookmark blast, but I'm looking forward to more suggestions.