Answered
September 07, 2008 14:38.
The current Federal estate tax exclusion is $2,000,000 per person. Therefore, if that was a properly drafted husband-wife estate plan, the first $4,000,000 can pass to the children and later heirs free of estate tax. Note that the exclusion increases to $3,500,000 on January 1, 2009. That means that if the first parent dies in 2008 or earlier, and the second parent dies after 12/31/08, the first $5,500,000 can pass to the children and later heirs free of estate tax.
As for the impact of the limited (and very small) Illinois estate tax, you must talk to a lawyer of CPA licensed in Illinois.