I, too, would very much like to see a plugin with the functionality Valdecil describes. I tried the Warden Lite plugin and it just didn't do it for me. A categorized listing of all gambits currently possessed by the warden and the steps to trigger each gambit would be a godsend. Here is what I envision:
A small bar with the various categories of gambits (HoT, Threat Transfer, etc.) represented by different buttons. When you click a specific button, a drop down list of all the gambits in that category is revealed. Mousing over each gambit will reveal a short description of the gambit and the steps necessary to trigger it.
I know that a plugin like this would *greatly* help me in-game. It doesn't *sound* too difficult to achieve, but then again, I don't know lua scripting. Is there anyone out there with the awesomeness required to create this and help us poor downtrodden wardens out?