There are several ways you can set up your BB to receive your e-mail. One of them is BES. Shocked Cingular told you not to get one if you don't have a BES.
This link - FAQ: What Are The Methods of Receiving Email On BlackBerry?
- shows you the different methods.
Do you current have Outlook with Exchange? If so, you can use the BlackBerry Desktop Redirector - which has some serious shortcomings.
If not, can you have your work e-mail forwarded to your BlackBerry? Check with your IS department on that.
Read the FAQ, then post back.