If i only want to rank for one specific keyword and use it in all my page titles, will it negatively affect my rankings?

[foonista]

If i want to rank highest for one specific keyword (virtualization management, for example) and use that keyword in all the titles on my website, will that negatively affect my search rankings? SEOmoz is telling me that i should use unique titles for my different pages to ensure that they describe each page uniquely and don't compete with each other for keyword relevance.

[johnshearer]

Each page is like an independent piece of real estate, the strength of each page depends on the pages popularity (links, social markers etc.). In a natural organic process others will link to those pages in a random pattern depending on the quality of content. Use longtail keyword versions of titles and fill in content accordingly. so..

instead of

dog training, dog training, dog training

use

dog training, history of dog training, dog training locations

you will find some good info on this site http://www.wordtracker.com/find-the-best-keywords