Best Buy takes $100 off select MacBook Air models, as listed below. Plus, all orders qualify for free shipping. That puts each at the lowest total price we could find by at least $19, although we saw some models for $100 less in January. Offer ends May 12. The deals:

• MacBook Air MD223LL/A Intel Core i5 1.7GHz 11.6" 64GB SSD (pictured) for $899.99
• MacBook Air MD224LL/A Intel Core i5 1.7GHz 11.6" 128GB SSD for $999.99
• MacBook Air MD231LL/A Intel Core i5 1.8GHz 13.3" 128GB SSD for $1,099.99 (Amazon charges the same.)
• MacBook Air MD232LL/A Intel Core i5 1.8GHZ 13.3" 256GB SSD for $1,299.99