A helpful resource for this can be downloaded here: http://gallery.technet.microsoft.com/systemcenter/Mastering-the-certification-b3f881f6
Also, the best thing that you can do is review the the 'Skills Measured' information on the exam webpage and ensure that you are confidant with the skills measured, they provide a detailed list on the site here: http://www.microsoft.com/learning/en/us/exam.aspx?id=70-243
Practice tests are great for accessing where you are at with your study and if you are scoring over 90% in the practice tests then you are most likely ready to sit the exam, but you will want to review the 'Skills Measured' in the exam webpage
again first.
Jarad, MCITP, Brisbane Australia