If you're looking for a thin and light laptop but $900+ price point on Ultrabooks or MacBook Air laptops are just too much, Costco.ca has a pretty good compromise solution. Currently, you can find a Dell Inspiron 13z 13" Laptop w/Core i3-2367, 500GB HD, 6GB RAM, Windows 7 and more for $539.00 with free shipping. The laptop is reasonably thin and light at 21mm thick and approximately 1.74kg (or 3.81lbs). Here's a closer look at the specs:

• Intel Core i3-2367M processor, 1.40 GHz
• 6 GB DDR3 RAM
• 500 GB 5400 RPM SATA HD
• 8-in-1 Media card reader
• 13.3-in 1366 x 768 HD LED display
• Intel HD graphics
• Intel 2230 802.11 a/b/g/n wireless & Integrated 10/100 Ethernet LAN
• Bluetooth 4.0
• 3 USB 3.0 ports
• HDMI
• Microsoft Windows 7 Home Premium 64-bit version
• 6-cell lithium-ion (Li-ion)

You've got a pretty low price, portability, and enough horsepower for everyday use (power users notwithstanding). Dell Canada prices this laptop at $587.99.