World Queller $.30
Eternity Vessel $.30
Pyromancer Ascension $.30
Sphinx of Lost Truths $.50
Devout Lightcaster $.50
Crypt of Agadeem $.70
Conqueror's Pledge $.80
Emeria, the Sky Ruin $.80
Valakut, the Molten Pinnacle $.90
Oracle of Mul Daya $.90
Kalitas, Bloodchief of Ghet $1
Emeria Angel $1.50
Luminarch Ascension $1.50
Sphinx of Jwar Isle $1.50
Oran-Rief, the Vastwood $1.50
Felidar Sovereign $2
Mindbreak Trap $2
Rampaging Baloths $2
Chandra Ablaze $2.50
Ob Nixilis, the Fallen $4
Eldrazi Monument $5
Iona, Shield of Emeria $5
Day of Judgment $6
Nissa Revane $8
All Fetches $10
Lotus Cobra $10
Now that the new set is out, Zendikar prices have dropped - anywhere from $.50 to $1. Vampire cards, on the other hand, have gone up about $1 since last month - as everyone can tell Vampires is going to make an impact on Standard and Block soon.
For budget deck builders, decks like Mono White Control, Mono White Aggro, Valakut Ramp, Pyromancer's Ascension, Runeflare Trap, and Dredge all are ripe for the picking since the cards for these decks are very cheap at the moment.
In Legacy news, Show and Tell has tripled in price and is now $10 or more. You might want to think about selling your Show and Tells now. Or wait to see if they go up even more. This Dream Halls deck made first place in a German Legacy event, which presumably caused the upsurge.