... nobody mentioned about SQL server... include it as a consideration too... bes setup includes a small-scale SQL server in MSDE, however it has limitation when your user base grows... for future expansion consideration, your bes configuration database is recommended to be put on a full SQL server - just highlighting
best way to ensure successful and hassle-free installation... consult and study the Quick Start Guide and Installation Guide found on the Product Documentation link in BlackBerry Support site
http://www.blackberry.com/support
-= noname =-