right. push email pumps it to your phone directly. 3G can also be used to check, and so can GPRS.
However, if you have dumb-ass friends who like to send you large files, then you might end up paying a lot more since tele is charged by packet transferred. You need to look for the setting that DLs text only to your phone.
BBerry is more corporate, so if you are implementing a company system, then BBerry is the better option because of its support for its own custom suite of biz applications. The Nokia is more of a private user thing, since you can customise it as you wish and have access to loads of 3rd-party apps, not all of which might look nice or work because of the difference from the regular Symbian screen.