[bestr32]

pawn Code:

new string[128], name[MAX_PLAYER_NAME];
    GetPlayerName(playerid,name,sizeof(name));
    format(string,sizeof(string),"{0000AA}%s {00AA00}[%i]{FFFFFF}: %s",name,playerid,text);
    return SendClientMessageToAll(0xFFFFFFFF,string), 0;

This is it... Easy