http://girlmeetswow.blogspot.com/2008/02/6-mods-and-macros-to-help-you-win-in.html

I especially like this macro:

/script mP = GetMinimapZoneText( );
/script cL = "";
/script if ( IsRaidOfficer( ) ) then cL = "RAID_WARNING"; else cL = "BATTLEGROUND"; end
/script SendChatMessage ( "> has inc! 1 per spam...", cL, nil, nil);

Now, the 'send one message for each inc' may be annoying, so you could change that, but having a button to push that calls out 'inc' with my location is terribly handy. Especially if some damned rogue just jumped me while I wasn't in bear form...

Nice!