CtA_Hawk monitors the new Call To Arms feature that was added in patch 4.1. With this mod, you can be alerted when CtA rewards are being offered for the role or roles of your choosing. The alert can come in the form of a chat message or be displayed in the middle of the screen. A sound can also be played to really get your attention (or scare the crap out of you as the case may be).
You can even set the mod to automatically add you to the queue when CtA rewards become available.
If you have an LDB-compatible display, you can keep an eye on CtA status in between alerts and you have easy click access to the LFD tool, the CtA_Hawk configuration options and a Control+Click will add you to the LFD queue.