Once you have some solid keywords, there are a few different schools of thought on what is next. My own is to make sure that you have on main keyword and a few long tail or supporting keyword terms. The reason I always work with a group of keywords is that there is not as much of a magical kw density as there has been in the past as far as Google is concerned. In fact, it is very highly suggest by most seo authorities to not even worry about the kw density, but rather the actual flow of the content. Making sure your content is not only original and helpful, but also pertinent to the topic you are writing, adding industry slang really seems to help in some cases. If you can write naturally (for the reader, not for seo) then almost always this content will win in the long run. The focus of your efforts really should be to create remarkable content not to use a mathematical algorithm to figure out exactly how many times you should drop a keyword. If you have your own site that you can alter the actual url of the content, having a keyword closer to the domain is helpful, if your blog does not put the title of the post into the path, you may need to tweak your permalinks settings.
So with all that said, the next step is to either create or outsource some powerful and compelling content. This will also really raise your chances of others sharing your information virally.
Oh and yes, Title is important.