Thanks for writing us! We don't have an oreilly.com discount for IEEE in general, but we do have lots of discounts and benefits available for user groups and professional associations. Your local chapter can register at http://oreilly.com/ug/ to participate.
It looks like IEEE also offers access to Safari Books Online, as well as a discount on a premium Safari account: http://www.computer.org/portal/web/me...
Hope that helps!