What PSX controllers do you reccomend using? Just any of them? I am not into force feedback or anything silly like that, but I want to make sure I get the right stuff. Should I shoot for the original PSX controllers or the ones with the little thumb joystick?
Both official PSX and PS2 (Dual Shock) controllers work fine. My preference is the PS2 ones, as it has a softer feel to the buttons and D-Pad.
I've also used it with my namco arcade stick for fighters and that works fine too.
In regards to your second question, the device is plug and play, meaning you can put the device in the PC at any time and it will be detected automatic/immediately.
Controllers can be added/removed at any time.
You can even plug in to, and get 8 joysticks for games like FIFA (emulated Genesis version).
The only catch, plug it in and windows and you see all 4 joysticks (not a bad thing). If a controller is plugged in, it wont always be detected as Joystick 1, so you might have to move it to one of the other PSX ports to find which port it is.
As a paranoia, I'll test this again soon to confirm, but I still pretty certain it behaves as I've described!
Oh, and I'm not sure that this adapter supports force feedback.... note, it'll support the forcefeedback joystick as a controller, it just wont vibrate in PC games that support it.