brianb: the games I have here that support two buttons are Project-X and Turrican 2. I am not sure but I think Lion King supported it too, making it equal to the SNES in gameplay (and everything else afaik).
hektic: hmm that Cheetah looks ok, I think I may buy it because of its low price.
mdv2000: I think I will pass on the Sega joysticks, some may need a hack to work on the Amiga (afaik the gamepad of the Sega Megadrive I worked on the Amiga straight from the box, the one from Megadrive II or III didn't).
For a large arcade style control like these, I would prefer to get the Quickshot Maverick as
Ruud suggested, it is a NES joystick and so it is supposed to be guaranteed to work on Amiga.
Cammy: So is WHDload people actually fixing other flaws in Amiga games rather than them being floppy disk-only ? Whoaa!!

Have to check it closer!