I was wondering a few things about it.
First off, how much is it worth? I have a sneaking suspicion that I got an incredible deal on it.
Second, is that an integrated control pad I see built onto the unit?
Third, is it compatible with these two controllers:


And finally, does the Touch Pad controller map the third button in the same way the Game Pad controller does?
Any help would be very much appreciated.
EDIT: I thought you might like to see some pictures