urgent...pcb design specs and drc

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hello ,
this is an urgent request. Im trying to design a PCB for the AT91RM9200
microcontroller . It would work at a max speed of 100Mhz . I dont have
too much of an idea about signal integrity issues and i dont want to
mess it up
Would somebody be kind enough to give me some decent specs i should use
....like

signal track width
spacing
via size and hole size
(...same for power/ground)

and of course the DRCs...anythgin else i might have missed...

Any help would be greatly appreciated...

Thanks
Manan