PCI Bus Layout Question

["Markou, Pete" <Pete.Markou@GD-CS.COM>]

I am designing an embedded motherboard which uses a 33Mhz 32 bit PCI bus.
I understand that the PCI bus does not incorporate termination resistors at
the physical end of bus to absorb voltage changes, and instead relies on the
reflected wave switching.   Couple of questions:

1) What value of controlled impedance should the board use for the PCI Bus.
Is this a factor of bus length and speed?

2) How do you handle terminating the PCI Clock signal on the motherboard
(not on PCI cards)?

3) Any other layout issues that I should be aware of? (i.e., diode
terminations, etc).

Thanks for your response,
Peter