Hi, I am deciding the structure of a site I am putting together and would like to know if anyone can give a pros and cons regarding performance and having either alot of pages or alot of portals.  The pages would not be listed on the menu, so I would like to know if there is a performance cost regarding either of these options.

Basically the requirements allow for either one of these options and I am leaning towards going with a few pages per registered user instead of a portal per registered user (mainly because I require single singn-on with users shared between all portals if I go this route), and unfortunately it does not appear DNN by default supports this - as well the SSO solutions I've found seem to be very clunky and have an effect on other the core and other modules.

Any advice would be great,

Thanks