>... in a few years with technology advancing by leaps and >bounds prices will come down in the FX format and we will get >FX at a reasonable price.
This will never happen. Even if the cameras cost the same, you still have to buy the lenses. Look at the prices of the DX 18-200 and the FX 28-300 which have the same fields of view. Compare the price of the 17-55 f2.8 DX and the 24-70 f2.8. Look at the price of the FX 80-400, and compare with the new DX 55-300 that gives an FX-equivalent 82.5-450. If you want to go really long, compare the price of a 400mm with a 600mm lens. Now, after comparing prices, compare the sizes and weights.
FX will always cost more than DX, and will make you carry a bigger heavier kit. The big difference between FX and DX isn't the cameras, it's the lenses.