Hi Risssa,
There is an open mic portion before each slam at Café Deux Soleils, but if you're looking for an open mic show, you're best bet would be Thundering Word or Twisted Poets or the Hogan's Alley Poetry Series. There are details about these other series here:
http://www.pandorascollective.com/what-we-do/eventsYou can also search for them on facebook.
I like your idea of having a Beginner's Night for poets who want to get their feet wet, but we don't have anything like that yet. Something like this could be the Alt Slams that happen irregularly. They are less competitive than the regular slam and revolve around different themes. Keep an eye out on our calendar for the next one.
Other than that, I guess I would say that we encourage and welcome all styles and voices at the poetry slam. It can be intimidating to get up there, but it is a very supportive audience. Go for it!