The Sony SZ series or Lenovo Thinkpad X60 are two Windows-based laptops that come to mind. I'm thinking about a laptop with roughly similar specs and these are the two I've honed in on. I've also considered, but have now basicly eliminated, several others including: Sony TX Series, Panasonic Toughbook (Y4 or W4) and the Dell X1. The SZ and X60 fit most of your criteria:
1) Both are Intel Duos
2) Sony: The SZ uses a unique hybrid graphics design: a built in chip for optimizing batteries, and seperate chip for high quality graphics. Thinkpad:
3) Both use SATA connectors. Don't know about cache and NCQ
4) 2 USB ports on the SZ, 3 on the Thinkpad.
5) Don't know what an NIC is, but both have Ethernet ports.
6) Both 802.11g support.
I am personally leaning toward the Sony, based mainly on superior graphics, a wide-screen 13" monitor (vs. a standard format 12" on the Thinkpad).
I'm looking for a very lightweight (removable CD/DVD is fine) laptop with the following:
1) a dual-core chip design (or true 64-bit),
2) a graphics processor that will support WDDM, Direct X 9 with at least 64 MB of graphics memory (the ability to replace the onboard video later would be great),
3) a SATA hard drive with 8MB cache & NCQ,
4) 4 or more USB ports,
5) a NIC that will support 10/100 Mbps Ethernet, and
6) a 802.11g wireless interface.
What are the best choices?