>> I agree, the autorouter is a good tool for determining overall
>> complexity of a design ... if it is having major problems, one is 
>> likely
>> to have problems doing it by hand as well.
>>
For simpler boards, I also like to run the autorouter in single side
mode, which gives a slightly different sense of complexity from running
it double sided (which by default balances the two sides.)

It is usually a good idea to run some sort of power bus around the board
before autorouting, even if you don't connect the bus to the chips.
Otherwise, power traces will get routed pretty randomly (FIRST, if
they're in a wide class, but still rather randomly.)

BillW
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