I would suggest you the Acer Emachine eM250 Laptop which has the following features:
Intel Atom, Processor 1.6GHz, 3-cell lithium-ion Battery , Display Type: Widescreen LED-backlit (1024 x 600), Screen Size (Measured Diagonally): 10.1", System Memory: 1GB, System Memory Expandable To: 2GB, Computer Hard Drive Size: 160GB, Graphics: Intel Graphics Media Accelerator 950, Wireless Networking: Wireless-B+G, and Windows XP Home SP3.