This is why I rolled on an RP server. VanasKoS addon from Curse.com comes in handy for this sort of thing too. It also helps you detect incoming within about 30-40 yards, maybe more. Usually about the distance Rogues wait to stealth before ganking you. Only need to run it on your main toon. Really handy for defending cities cause it'll detect them the second they rez if they're tryin to hide in buildings. Just camp their corpse and search the houses when you get the flashing warning.