http://www.curse-gaming.com/mod.php?addid=694
It's pretty good stuff for raid's. I find it most usefull in MC when there are multiple targets for multiple tanks, especially on the Core Hound Packs because you need to burn them down within 10 seconds of eachother or they will start respawning. It can be used for all sorts of other good stuff.
I got my Turbocharged Unicorn of Epic Doom mount.
Silithus has some decent rewards once you start gaining faction and killing the Dukes.