Also, there's HoMM II Gold at $9.99, Might and Magic VII and VIII at $5.99 each. Heroes IV Complete is sold for $9.99 (compared to $15.99 at Amazon.com), and you can also get HoMM I for the same price. Returning to the "not-so-old", the Heroes V Bundle (H5 + both expansions) is on sale on Good Old Games for $19.99.
(P.S.: Although this is a Might & Magic website, I should also mention that Master of Orion I and II (possibly two of the best games ever made) are available for just $5.99, the excellent Alpha Centauri and Caesar III are available for the same price and for those of you who really like it retro, so is Master of Magic.)
Happy gaming!