I was unpacking some boxes after a move recently and discovered I've still got a working NES -- two controllers, light gun, and about half a dozen games. I don't know if anyone is interested, but feel free to make cash/disc offers.
Also found a working Dreamcast or two (two main units, haven't figured out if there are enough cords to go around) with several controllers, memory cards, and stacks of backup games. Again, feel free to make offers.