Tabich,

I agree that you can use the same IP as the outside IP and the PAT IP, but it looks like mickey05 has x.x.x.118 on a different device. See his entries:

"
Public network: x.x.x.112 255.255.255.248
Public router ip default gateway: x.x.x.118
Ethernet0 (outside) x.x.x.117 netmask 255.255.255.248
Global (outside) 1 x.x.x.118 netmask 255.255.255.248
CAN NOT CONNECT FROM HOST 192.168.1.2 PIX X.X.X.117, ROUTER X.X.X.118 OR ANY INTERNET HOST
So x.x.x.117 could be used for the PAT address, but my preferred method is to use a separate IP for PAT.