I've written a new addon which I've called NeedsUpgrade. Its a fairly simple addon that colour codes your equipment on the character screen so you can see at a glance which items are the lowest level ones you have.
It can be a pain to remember on your character, or worse across multiple characters, which items of gear are in most need of an upgrade.
This addon is fairly simple it looks at your equipped items and colour codes each item on the character sheet using the familiar colour scheme seen with quests and mobs etc. as follows :
Red : Item is a lot better than average items equipped
Orange : Item is better than average items equipped
Yellow : Item is around the average items equipped
Green : Item is worse than the average items equipped
White : Item is a lot worse than the average items equipped.
So at a glance on your character sheet you can see which items are green and white and thus are most in need of an upgrade. This could be very useful whilst trying to get higher item levels to qualify for that next raid tier, or whilst levelling to see what gear is needing an upgrade. Also for just a general quick glance to see what you might want to spend those valor points on next.
Example of levelling character showing his headpiece and gloves are his best items in red and his boots are his worst item in white.
You can download it from the Curse Client or from here.