Two programs will make your phone ring and vibrate at the same time.
1)
VibAndRing - cost is $7
2)
Ringo - cost is $19.95
VibAndRing is a simple replacement for the standard ring and vibrate function on the handset. Ringo is a little more complex in that you can map specific ringtones for groups or contacts (whether calls, email, SMS etc) and all other tones on the BB.
It's a basic function which many handsets and smartphones have got in place which is lacking in the BB.