Purpose: This study was conducted to determine if an individualized information intervention was more effective than a generic approach to provide decisional support to men newly diagnosed prostate cancer. Methods: A total of 324 men newly diagnosed with localized prostate cancer were recruited from community urology clinics. Interviews were conducted within two weeks following the medical treatment consultation. The following scales were completed prior to randomization and after a treatment decision was made: Control Preferences Scale (computerized version), Satisfaction with Preparation, Satisfaction with Information and Decision Making, and Decisional Conflict. Men in the generic information group watched a video on early stage prostate cancer, while the intervention group utilized a computerized Patient Information Program (PIP) to assess their information priorities. Print outs of each information need rated more than 50% in importance was utilized by a Research Nurse to provide disease specific information. This session also included a discussion of the pros and cons of each recommended treatment option. A written information package was provided to each group. Results: No statistically significant differences were found by group relating to decisional control, decisional conflict, or satisfaction with preparation in treatment decision making. All patients reported low levels of decision conflict prior to and following treatment decision making. The majority of patients in each group reported assuming a significantly more active role in treatment decision making than originally preferred. Men who received the individualized information were significantly more satisfied with the amount, type and way information was provided, and decision-making with physician. Conclusions: The difference in satisfaction between the two groups was not considered clinically significant. Therefore, provision of a video and written information package is suggested as an appropriate and cost effective method of providing information decision support to these men and their families at the time of diagnosis.