here are some reviews

i used Nikon D100 over the weekend and it is darn good. D70 has more advanced features than D100 but more affordable.

if u can, rent one and try it.

http://www.dcresource.com/reviews/nikon/d70-review/index.shtml

[Nikon-D100.jpg] Nikon D100 The Nikon D70 ($999 body only) is very similar to its predecessor the Nikon D100 ($1499 body only), with
competitive features at a cheaper price. Although the two cameras look almost identical, the Nikon D100 is a very substantial camera
with a metal body, as opposed to the plastic body of the Nikon D70. The Nikon D70's lighter and more compact body (140 x 111 x 78mm,
595g, 1,212,120mm³) is much more portable than the Nikon D100 (measuring approximately 144 x 116 x 81mm, 700g, and 1,353,024 mm³). The
two digital SLR cameras have identical settings for a number of features: 6 Megapixels, AF mode, Self-timer, Exposure compensation,
White balance, and Bracketing. That said, there are many features that have been added or improved upon in the Nikon D70. Nikon added
an auto shooting mode, 6 scene modes, higher shutter speeds, higher resolution LCD screen, Pictbridge compatibility, increased image
parameters, and a pentamirror viewfinder. The features that the Nikon D70 did not inherit were TIFF format and higher ISO settings.

[Canon-Rebel-300D.jpg] Canon EOS Digital Rebel Since its introduction to the market, the Nikon D70 has been heavily compared to the
Canon EOS Digital Rebel ($899 body only). The two are both aimed at the sub-$1000 SLR market and offer many of the same features. The
two cameras are roughly the same size: the Canon EOS Digital Rebel comes in at 142 x 99 x 72.9mm, 560g, 1,024,828mm³; and the Nikon D70
measures 140 x 111 x 78mm, 595g, 1,212,120mm³. The Canon and Nikon competitors both have lightweight bodies, 6 Megapixels, similar
White balance options, Exposure and White balance bracketing, Pentamirror viewfinders, compact flash use, and Pictbridge compatibility.
The areas in which the Canon EOS Digital Rebel excels are: color and resolution performance (according to our testing), lower ISO
capability, 35 zone metering system (as opposed to the Nikon D70's 3D matrix system), 7-point AF system (as opposed to Nikon's
5-point), and fine-tunable White balance settings. The Nikon D70 excels with its higher LCD screen resolution, increased preset
parameters, (7 compared to Canon's 5), increased Exposure compensation, adjustable AF mode, fast start-up time, 3 frames per second
capture rate (Canon EOS Digital Rebel only has 2.5 fps), 2-20 adjustable second Self-timer options (Canon only gives you one 10 second
option!), and AF Assist white lamp (the flash must be up on the Canon EOS Digital Rebel for AF assistance). The slightly larger body
and increased price may be a deterrent for some, but in my opinion the slight price jump is justified by delivering a more substantial
camera with better flexibility.