WoWInsider (http://www.wowinsider.com/2007/10/27/rawr-a-gear-application-for-tanking-druids/), by the way of Adventures in Azeroth (http://nedruid.wordpress.com/2007/10/26/new-equipment-comparisonevalution-tool/), points out a sweet little application for bears called Rawr (http://druid.wikispaces.com/Rawr). Rawr is a armor analyzing tool. Not only will it analyze your current status, but you can see how things would appear with select buffs and debuffs. It'll also display upgrades, both in gear and gems.

It's a pretty sweet application. For anybody that's all into numbers, this is nothing but numbers. Unfortunately, it is Windows only as it requires the .NET 2.0 framework. Sorry Mac druids.

Nice. Saw this on Druid Wiki couple days ago =)

>.>
<.<
Dunno why I didn't post this. It's a nice little application for analyzing your gear and it shows in ratings terms what your upgrades are and how best to itemize yourself.

I <3 programmers....though I may be biased.

Hunter's have access to a similar program, except that it is a WoW addon which means I can tell "in game" which piece of gear has a higher rating than another piece of gear. It is great while leveling and you aren't sure if 2x+AP is better than +agi, etc.

I think someone copied the hunter version and made a druid version, but it is no longer supported or maintained.