This addon alerts you when actions are carried out in a bg; if a gy, or tower has been captured, you will be alerted with vocals!

http://www.wowwiki.com/BGSoundAlerts

If you change the scale of the mini map lower than 1.0, the icons aroound the map move slower than the mouse, therefore the icons will move awkardly and not where you want them to move to.

Addon called Capping notifies you of important info of the current battleground you're in:

http://www.wowinterface.com/downloads/info11177-3.1.004a.html