HELP PLEASE! NEW fuji FinePix S100FS verses DSLR with dedicated Macro for jewellery p

[whiteknight]

I have been photographing jewellery for a few years now but recently had all my gear stolen.
Would there be much advantage buying a DSLR camera with dedicated Macro lens over the NEW fuji FinePix S100FS with Fujinon 14.3x Optical Zoom 28-400mm lens?
I am concerned whether the Fuji lens will be suitable. http://www.fujifilmusa.com/products/digital_cameras/s/finepix_s100fs/index.html
Another concern is how much range does a dedicated macro lens have, will it shoot my larger A3 plus size necklaces ok?
What camera – lens combo would be most suitable for under US $800, is second hand my only option?
The size of the jewellery ranges from a small pearl to over A3 page size.
I have the lighting pretty much sorted with soft box and daylight bulbs.

Any info on smart budget solutions brands and model numbers would be great.
Many thanks