Rancho over at Warp2Search discovered a list of specifications of BFG Technologies upcoming GeForce FX. You can pre-order the 128mb version for a hard-pocket-hitting $400 US - with the 256mb version expected to cost around $500 US according to many sources.
Just remember, if you want to be run one of these powerhouses - you are going to require a minimum 350 watt power supply unit, keep it in mind.
Specifications:More information @ Warp2Search
Controller: NVIDIA GeForce FX
Bus type: AGP
Memory: 128MB DDR-II
Memory Bandwidth: 16 GB/second (32GB with compression)
Core clock: 500MHz
Memory clock: 500MHz (1000 DDR-II)
RAMDAC: 2 @ 400MHz each
Connectors: VGA, VIVO, DVI-I
200 million triangles/sec