A few days ago I ordered an adaptoid N64-USB adapter and a similar dongle that lets me plug in two PSX or PS2 console controllers into a single USB port. I'll use these for emulating consoles whose controls are too complex for the general control panel. The adaptoid showed up today! If it works well with the computer that should be arriving Wednesday, I'll order a second one and another N64 controller (and maybe a pair of rumble packs off Ebay).