Hello Dicemanx,
First of all, I like your deck

. Your deck did motivate me to gather an Eureka.dec and yes, I'm still trying to get some ''hard to get cards'. Luckely I already have 3 Eureka's incoming. Because I'm not yet ruch enough :p, to get some cards of the P9 I decided to maker this deck powerless.
I also decided to make the deck more flexible, but on the other hand a little bit slower. As you can see my creature choice is different then yours. I also liked Reya, so if you get her in play by an Eureka then your Sneak Attack becomes even more powerfull, because the turn after that the creature comes into play.
I'm still planning to add on copy of Anger in this deck, but I don't know what will be the exchange. Anger can be very hard with Eureka.
Okay, I guess your deck is stronger, I don't use any P9 card

, but what do you think of it?
Engine:
4#Sneak Attack
3#Oath of Druids
4#Survival of the Fittest
4#Eureka
Creatures:
1#Squee, Goblin Nabob
1#Gigapede
1#Darksteel Colossus
1#Endless Wurm
1#Silvos, Rogue Elemental
1#Crater Hellion
1#Platinum Angel
1#Genesis
1#Ravenous Baloth
1#Reya Dawnbringer
1#Serra Avatar
2#Penumbra Wurm
3#Symbiotic Wurm
3#Verdant Force
Mana:
4#Eladamri's Vineyard
4#Taiga
4#Wooded Foothills
1#Sol Ring
1#Mana Vault
1#Mana Crypt
2#Mountain
6#Forest
1#Mox Diamond
1#Chrome Mox
1#Lotus Petal
Sideboard:
4#Null Rod
4#Chalice of the Void
4#Carpet of Flowers
3#Naturalize