Looking for a doc on AP/client connection process

HI,

Can anyone point me to a doc which explains the initial connection
process
between an AP and client ?
I had a look at some how-to's but they don't answer my questions.
Somoething that addresses my questions below would be good.

Thanks,
Ray.

When a client powers up, I guess it listens on each channel for an AP
beacon,
and then lists the available APs to the user ?
When initiating a connection with an AP, I guess the client sends out
a connection request to the AP ?
This request might be a DHCP broadcast and must include MAC address,
and SSID of AP ?
What happens if 2 APs with the same SSID are operating on the same
channel ?
What happens if 2 clients assume the same IP and MAC (spoofing)?
What determines if a connection is 'lost', and the client
dis-associates itself
with the AP ?