Cheapest on Static Ice is $599 from J&W Computing.
Specs:
13.4 inch dimension
SU7300 Core 2 Duo ULV @ 1.3 ghz 3mb cache
Windows 7 Home Premium
2GB DDR2 667mhz
13" LCD with Integrated Intel GMA 4500mhd graphics
HDMI output
320GB HDD
4 cell battery (expect about 3.5 hours usage)
I believe this is the cheapest SU7300 ulv dual core notebook you can currently get.
For those who prefer an AMD alternative, try the Lenovo Thinkpad Edge 13 inch. Has a 6 cell battery and uses AMD Neo X2 L325 processor.
Price $555 + shipping.
The linked image is of a Samsung monitor :-)