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Use
a tool to establish a prototype design
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MatLab
is a great choice
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See http://doctord.webhop.net/courses/Topics/Matlab/index.htm
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for
a Matlab tutorial by Dr. Bouzid Aliane; Chapter 5 is on filter design.
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Check
your design for ringing/overshoot.
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If
detrimental, increase the filter order and redesign to exceed
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the
frequency response specifications
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Move
poles near the j-axis to the left to reduce their Q
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Check
the resulting filter against your specifications
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Moving
poles to the left will reduce ringing/overshoot,
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but
degrade the transition region.
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