I personally would go 2 of each that way you have a little extra mana and an infect creature with regen just in case.
Permalink
Oh I've been doing a little looking around, what about Inexorable Tide, Steady Progress or Fuel for the Cause. All are quite cheap in terms of $.
have you thought about adding Inkmoth Nexus, it does up the price of the deck though.
Sweet Jesus this is fast..... and cheap too!
Rather than the Elite Vanguard what about putting Somberwald Vigilante in instead? Please have a look at my R/W Tribal deck http://www.mtgvault.com/ViewDeck.aspx?DeckID=336513