skoogle

I think you'd do well with Phyrexian Crusader, if you can get your hands on some.

Just thinking "out loud" here, but would Darkslick Shores and Go For The Throat be improvements?

I'd feel safer with Mana Leak than with Negate. Also, I might run 3 or 4 Darkslick Shores.

How much of a difference would replacing 3 plains with 3 Seachrome Coasts make?

No Geist-Honored Monk?

fair enough ;)

If you're going red/green, use Rootbound Crag, Raging Ravine and Copperline Gorge. I'd also add a few Eldrazi Temples.

Actually, the titans aren't that expensive.

Why no Rith, the Awakener?

Bear in mind you need to get to exactly 99 cards, plus your general. I'd recommend Mycoloth for this theme.

I might use some creatures that provide mana themselves, such as Llanowar Elves or Palladium Myr.

Cut the Hands and the Crusher and put in Artisan of Kozilek. Also, more Eldrazi Temples and possibly Eye of Ugin. And how about Semblance Anvil?

Would Admonition Angel work here, or would it clog things up due to there only being 20 lands in the deck?

I don't see any Finest Hours, and that bothers me. I also think Rhox Charger would help.

I suggest using Rafiq of the Many, Battlegrace Angel, and either Mana Leak, Cancel, Stoic Rebuttal, or even Counterspell.

or any other enchantment removal, for that matter...

Very interesting. But what do you do abut Back to Nature?

Would Chandra's Spitfire/Raid Bombardment work in this deck, or would it slow it down too much?

I'd replace the Aven Squires and possibly the Jenaras.

Would the Chandra's Spitfire/Raid Bombardment combo fit, or would that slow the deck down too much?

It provides all three colors of mana you need, though. I love it, and I run 4 in my Exalted.