MegaMacs offers select Incase Hardshell Cases with prices starting at $17.99 plus around $3 for shipping. (Shipping varies by ZIP code and the particular case you choose.) That puts each case at the lowest total price we could find by at least $16. Deal expires June 20. The cases:

• Incase Hardshell Case for 13" White MacBook in Grape, Aubergine, or Red for $17.99
• Incase Hardshell Case for 13" Aluminum MacBook Pro in Clear, White, or Orange for $17.99
• Incase Hardshell Case for 17" MacBook Pro in Red (pictured) or Frost for $29.99