I would like to know what percentage of a Federal income tax dollar is
actually spent on services versus administration.  This is similar to
how a charitable dollar is viewed administration versus going directly
to the charitable cause.

http://www.whitehouse.gov/omb/budget/fy2005/tables.html

http://www.whitehouse.gov/omb/budget/fy2005/budget.html

At least half of all money is ultimately spent on adminisration with
rare exceptions, both governmement and corporate. More if several
large scale subcontractors and suppliers are envolved. There are lots
of grey areas such as insurance, lawyers, consultants, bribes,
incentives, advertising, perks, taxes employee benefits, stock options
etc
 IMHO only wages and a small portion of the raw material and energy
purchaced are not administrative. To give a useful answer, a complex
consideration of the many grey areas must be analyzed.   Neil