How many floppies can I use with a Apple IIe

[MarkW <markwcoREMOVENOSPAM@comcast.net>]

I am interested in purchasing an Apple IIe and am wondering how many
floppies I can attach to one.  Many I see on eBay have a Disk II
Drive.  I see many also have the Apple 5.25'' drive or the Unidisk
3.5".  I just purchased a Macintosh Plus and a Apple 3.5"
External-A9M0106 drive.  I know if I get a Superdrive controller it
will work with the Apple 3.5" External 
My question:
I'm kind of new to the Apple II but is it possible to use all 3 of
these drives?  Do I have to do anything to set up the system if I put
a Superdrive controller in it?