The search engine spiders live to read pages that are keyword rich with original content and tons of incoming links.This system pretty much ensures that your website will rank well in the search engines and overtime rank for general, hyper competitive keywords.
Try not to repeat the same keywords in the title, unless it is variations of the word. The word positioning in the title does not have anything to do with the keyword phrases (long tail keywords) drawn from the title. It may help rank for a specific phrase, but then you are narrowing down your possible ranking variations in the search engines.
When writing your page title and your header tags try to use variations of your keywords, such as plurals or slang terms.This will show the search engines that you truly are trying to have natural flowing content, not content that looks the same just to rank for specific keywords.