Info on some Apple // cards?

[Lockar <lockar@nospam.com>]

        I found an Apple //e with some cards in it, and I don't know a
thing about them.  I am looking to sell this //e (other half is telling
me to clear out my computer stash), so any input would be very
helpfull.

   First card looks like a modem, it has two phone conectors but I have
no idea what the baud rate it is.  Any one know about this card?

 http://www.locutus.org/ebayphotos/iiemodem1.jpg

http://www.locutus.org/ebayphotos/iiemodem2.jpg

The second card is a Slotbuster II card.  What do these cards do? 
There is one wire hooked in the internal joystick socket, another in
the speaker.  It also has a 25 pin connector on the back.  Are
Slotbusters rare?

http://www.locutus.org/ebayphotos/iiebuster1.jpg

http://www.locutus.org/ebayphotos/iiebuster2.jpg

The third card is a printer card (I think).  I'm just not sure what
type of printer card it is (I'm looking for the cable).

http://www.locutus.org/ebayphotos/iieprinter1.jpg

http://www.locutus.org/ebayphotos/iieprinter2.jpg

The fourth card is a 80col+ card but it has a switch on it.  Someone
wrote on a tape saying 'Hi Res' and 'Double Res'.  Does this switch do
any thing?

http://www.locutus.org/ebayphotos/iie80col1.jpg

http://www.locutus.org/ebayphotos/iie80col2.jpg

    Thanks in advance on your input.

   -Lockar