Actually over the weekend, I was going thru a few books I have laying around and they had some really good info I wasn't aware of. The one is "RF Power Design Techniques" by Irving M. Gottlieb. He goes into detail with with pi and tee networks used as filters.
The other book is "RF Circuit Design", by Chris Bowick. He covers alot on Butterworth, chebyshev and Bessel filters. High pass and low pass, bandpass and bandstop for anyone else that may be interested.
Crusher