WoW add-on that displays the approximate range to your current target
Version: 3.2RangeDisplay is a free range display add-on for World of Warcraft that uses spell range, item range and interact-distance based checks to determine the approximate range to your current target.
Operating System: Mac OS X
If, for example, a mage's Arcane Missile spell is in range, but the character is out of follow-range (an interact distance based range), the addon will display 28 - 30. The display can be configured in many ways (displaying only the max range, adding border and background, etc).