I'm quite good in Linux (iptables) firewalls and now i try to make firewall based on cisco pix.
Maybe you have got some doc/how-to how to configure pix firewall (access-list) but... not for dumb... but for linux admin?
I've got a lot of documentation about how to config cisco routers. I really don't know how to set default rule (Deny). In iptables it was easy: iptables -P FORWARD DROP....