Nathan J. Williams wrote:
> For ultra-cheapo input, though, you might look at buying a USB game
> controller with analog sticks and splicing your analog signal in
> there. Not so useful for output, unfortunately, but you'll typically
> have 2 or 4 analog inputs and about 10 digital inputs.
> 
>         - Nathan
> 

The Radio Shack USB joystick adapter, part #26-164.  4 analog and 4
(might have been 8, I lost my notes) digital inputs, no disassembly
required.  Also nice because it generates a message when an input
changes, so you don't have to continuously poll.

-Neil