PSX to USB Conversion

Hi all,
I am trying to find a diagram to enable me to wire a PSX pad to a USB port on my computer can anybody point to a link or summin.

I have searched google but to no avale.

Cheers

LOL.. you're really the "fiddler" type.. heh ?

Wouldn't it be easier to buy one ? then you can "reverse engineer" it.
http://shop.store.yahoo.com/a-sonic/pcusbadforps.html
http://shop.store.yahoo.com/midwestg...satdreama.html

but that aside.. did you look in google newsgroups ? Click here.

I prefer the word "Modder" but yeah i like to fiddle with tricky things and do stuff a little different. i dont want to buy one as that would defeat the point of modding.