eBay via BuyDig.com has the Asus Zenbook UX31A Prime Ultrabook on sale for $569.99, Free Shipping. (about $300 lower than elsewhere)

This ships with Windows 7 Home Premium 64-Bit.

Design - Optimal Use

A sleek 0.7" thin, 2.9lb light notebook that is designed for people on the go. This Zenbook is good for office applications, web, social media, and most other general applications. No optical drive with this model, although the SSD will make it considerably faster than most.

Look for larger screen if you plan to keep a notebook more in one location. Gamers should look for a gaming notebook with a faster processor and discrete graphics chip.

Key Attributes

Unlike most other Ultrabooks, this one includes a SSD or solid state drive for speed.  Other note worthy features:

• 13.3" screen.  Some Ultrabooks have larger 14" screen
• Rated for 6hr battery life, you'll probably get a little less
• 3rd generation Intel processor for decent performance
• 128GB SSD to speed boot and system performance
• Windows 7
• 1 year warranty

Specifications:

• Intel Core i5-3317U processor 1.7Ghz
• 4GB RAM
• 128GB SSD
• Widescreen 13.3" HD Display 1600x900 LED Back lit
• Bang & Olufsen ICEpower audio
• 6 cell battery
• Bluetooth and 802.11N Wireless