GUns guns guns !!!!

[Dillthegreat]

Im setting up a mame  cabinet running linux and using a tv to output too, I was considering the light gun that act lab offers , but then i heard atm they dont support tv's but mabe in the future., also they require directx and linux dont have directx so that gun is really out of hte question, i was reading some past topics on guns in the archives, and there was discussion bout using a psx namco gun with a psx to usb or pararellel connector instead, has anyone tryed this ? how do u go about doing calerbrations ??,  is there really any option for linux users and guns for emulated games ... ?
Any adivcice would be great