This deal has ended.
Today only, Mass Effect 2, for either XBox 360 or PC, is at Amazon for just $26.99 and $26.54 respectively, the new all-time low price. The action-combat game has received a near-perfect score from over 250 Amazon buyers. Be aware it's rated M for Mature. Shipping is free and there's no sales tax (except KS, KY, ND, NY, WA).