Now that you have the budget approved by your management and you would like to upgrade your current messaging environment to the latest version of Exchange, you must be contemplating on how to get it done.

To help you successfully upgrade to Exchange 2010, you can take help of the Exchange Server Deployment Assistant, a free-online tool that allows generation of Exchange 2010 upgrade instructions based on answers to a series of questions.

Try it @ http://technet.microsoft.com/en-us/exdeploy2010/default(EXCHG.140).aspx#Home