I wanted a couple of colorless decks that don't do the usual thing (Forge+Disk, etc.).
This deck runs lots of cards that use "charge counters", and ways to add or move those counters around. (Proliferate, etc.)
After I made this deck, they changed the color rules for EDH, so I could theoretically add more Sunburst cards and "any color" mana rocks (e.g. Darksteel Ingot). I'll look into doing that.
Click here for a text version of this decklist
Click here for my EDH Commander decks