hi paltel
why do you think the auth proxy feature isnt useful.. its a very good feature ,especially for controlling internet access... you need to have a ACS or any other radius server to define the user profiles... once this is done, the user will be allowed to browse only if the authentication parameters are correct...
you can also have proxy based authentication,but am not sure how to do this..
is the internet browsing through the same PIX, router even if the user goes to another site ?? if yes, then you can use the auth proxy, otherwise we need to think of something else..
Raj