I have a Blackberry (I'm a lawyer, not an SJ). It is a great tool for anyone, even though the cost is $50 a month for the e-mail. I have numerous e-mail accounts go to it, so I am always connected. The web searching is decent, but the device has a lot of faults. PDFs and other attachments are hard to read and the phone is iffy at best, meaning I have to carry two devices.
If you need to have access to your e-mail on the go, it is worthwhile.