[Zope] 4 question

Hi ! I want to create an web application, but I want to get information, how to create that, and what system I use... 1.) Can I create persistent db connection under ZOPE ? I don't want to drop the db connection, because the connect to InterBase is very slow... Can I do that, or I must create a my owned connection tcp server, and interface to use this thing (like php ibase_pconnect) ? 2.) Can I use non-cookie based session - just like in php (1 session/1 browser) - under Zope ? 3.) mod_python or zope ? What is goodest thing for create web applications ? 4.) Under mod_python can I use persistent db connection; and real (php liked) session ? Thanx for any answers ! KK