Ad Plugin Recommendation and Suggestions

I'm looking for some help on which plugin may be able to accomplish the showing of ads (adsense code included) at specific points after an individual wordpress post.

For example, if I want the adcode to display after the first paragraph and flush left like in this sample page, is there a plugin that will do this? http://tinyurl.com/pwhuy7

Will your in post plugin be workable to display adsense code after the first paragraph and flush left? If not, is there any other solution that you know of that would work? Adsense deluxe used to work well but it no longer supported or updated. Thanks