I am trying to determine what I should buy to have two pot joysticks
(4 inputs) connected to an IBM PC.  What joysticks work well?  Which ones to
avoid?  The joysticks can be simple.  One needs to return to center and the 
other need not.

	What interface PCB should I buy to read the two joysticks?  Is there
any software interface beyond reading a latch?

						Thanks