This low-end model may be available next week.
The new 8400GS card is cheap and it will replace the current G84 based chip with one based on a 65 nanometre process.
The card supports PCIe 2.0 x16, VGA, HDTV, dual link DVI-I and HDMI via a dongle. The card is 6.6 inches long and the reference card is low profile. It comes with 256MB of cheap DDR2 memory and it needs less than 30W.