Remember that the D1x/h are professional cameras, with all that entails: excellent build quality, durability and consistency of results but also large and heavy. The D100 is the first "prosumer" digital SLR from Nikon: smaller, lighter, but with less sophisticated autofocus and exposure systems and a lower maximum frame rate. It's exactly like comparing the F5 or F100 to the F80: the D1x/h are effectively hybrids of the F5 and F100 while the D100 is based on the F80.
For newspaper use, do you actually need the higher resolution of the D1x or D100? If not, the D1h is considerably cheaper and has a higher maximum frame rate and larger buffer which allows you to take up to 40 shots in rapid succession before you need to wait for the camera to write them to the memory card.
The D100 won't be available until June/July, and initial demand seems likely to be high since a number of companies have already been accepting pre-orders for the camera. There's also the issue that it is a brand new camera, while the D1x/h represent the second generation of the D1 series and as such have made some worthwhile improvements over the original D1.
If the cost is a serious issue you might like to consider a second hand D1.
Oh, and getting the 28mm equivalent is easy - you just need an 18.666mm lens... The 17-35mm or 18-35mm zooms would do this nicely for you. While they will give you the field of view equivalent, the results won't be exactly the same: you'll get the greater depth of field that goes with the shorter focal length.