By the way, I noticed your D&D action dice conversion, and I thought I'd make a few TOTALLY UNOFFICIAL suggestions...
In addition to what you have already...
Barbarian - Allow healing use of dice during combat while raging.
Bard - Double dice for bardic lore or bardic music rolls.
Cleric - Double dice for turning checks or adding to domain spell-related rolls.
Druid - Can heal animal companion with dice, double dice to attack rolls while wild-shaped.
Fighter - Double dice on Fort saves and damage rolls.
Monk - Double dice when adding to unarmed attack rolls or when rolling to add to defense.
Paladin - Double dice when laying on hands or to smite evil attack rolls.
Ranger - Double dice on favored-enemy-related rolls or wilderness lore checks for tracking.
Rogue - Double dice on Ref saves and sneak attack-based attack rolls.
Sorcerer - Double dice on spell-related damage rolls.
Wizard - Double dice on spell checks or spell-related attack rolls.
Take or leave em, as you see fit, and remember, I was never here...you didn't see anything...
-PS (plug) I did a d20 product for Eden studios called Wonders Out of Time that I'm really pleased with too...
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-Kevin Wilson

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.